Leader: Marek Żukowski
Senior researcher: Antonio Mandarino
PhD student: Konrad Schlichtholz
The broad aim of the Multiphoton Quantum Optics for Quantum Information Group is to develop theoretical quantum information science of immediate experimental testability as well as to study the fundamental issues like causality, new concepts in theoretical quantum optics, and efficiency of quantum (optical) protocols.
Activity
Specific goals include:
– Operational translation of the schemes prosed by the other groups of ICTQT into experimental optical setups and feasibility studies.
– Direct collaboration with experimental teams of our IQOQI partner as well as other laboratories.
– Investigations concerning device-independent or self-testing quantum communication, quantum information processing schemes, aimed at commercialization.
– Search for new research avenues in quantum optics allowing demonstrations of quantum protocols or various kinds.
– New indicators of non-classicality in quantum optics.
– Application of theoretical/operational/experimental methods of quantum multiphoton interferometry to other processes of potential value for quantum communication and information processing.
– Quantum optical implementations of secure data transmission.
– Theory of optical test of quantum mechanics.
Publications
2023
- Michele Grossi, Oriel Kiss, Francesco De Luca, Carlo Zollo, Ian Gremese, and Antonio Mandarino. Finite-size criticality in fully connected spin models on superconducting quantum hardware. Physical Review E, 107(2), 2023. doi:10.1103/PhysRevE.107.024113
[BibTeX]@ARTICLE{Grossi2023, author = {Grossi, Michele and Kiss, Oriel and De Luca, Francesco and Zollo, Carlo and Gremese, Ian and Mandarino, Antonio}, title ="{Finite-size criticality in fully connected spin models on superconducting quantum hardware}", year = {2023}, journal = {Physical Review E}, volume = {107}, number = {2}, doi = {10.1103/PhysRevE.107.024113}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85148328086&doi=10.1103%2fPhysRevE.107.024113&partnerID=40&md5=343a5f2bff30ce90e2f459ad8b101f90}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 2; All Open Access, Green Open Access} } - Massimiliano Incudini, Michele Grossi, Andrea Ceschini, Antonio Mandarino, Massimo Panella, Sofia Vallecorsa, and David Windridge. Resource saving via ensemble techniques for quantum neural networks. Quantum Machine Intelligence, 5(2), 2023. doi:10.1007/s42484-023-00126-z
[BibTeX]@ARTICLE{Incudini2023, author = {Incudini, Massimiliano and Grossi, Michele and Ceschini, Andrea and Mandarino, Antonio and Panella, Massimo and Vallecorsa, Sofia and Windridge, David}, title ="{Resource saving via ensemble techniques for quantum neural networks}", year = {2023}, journal = {Quantum Machine Intelligence}, volume = {5}, number = {2}, doi = {10.1007/s42484-023-00126-z}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85173578065&doi=10.1007%2fs42484-023-00126-z&partnerID=40&md5=848726c56a23792552978904f17f53a1}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 0; All Open Access, Green Open Access, Hybrid Gold Open Access} } - Massimiliano Incudini, Michele Grossi, Antonio Mandarino, Sofia Vallecorsa, Alessandra Di Pierro, and David Windridge. The Quantum Path Kernel: A Generalized Neural Tangent Kernel for Deep Quantum Machine Learning. IEEE Transactions on Quantum Engineering, 4, 2023. doi:10.1109/TQE.2023.3287736
[BibTeX]@ARTICLE{Incudini2023aa, author = {Incudini, Massimiliano and Grossi, Michele and Mandarino, Antonio and Vallecorsa, Sofia and Pierro, Alessandra Di and Windridge, David}, title ="{The Quantum Path Kernel: A Generalized Neural Tangent Kernel for Deep Quantum Machine Learning}", year = {2023}, journal = {IEEE Transactions on Quantum Engineering}, volume = {4}, doi = {10.1109/TQE.2023.3287736}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85163536018&doi=10.1109%2fTQE.2023.3287736&partnerID=40&md5=9e8d9333bae58075de9aa14c5c130b1f}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 0; All Open Access, Gold Open Access, Green Open Access} } - Antonio Mandarino and Giovanni Scala. On the Fidelity Robustness of CHSH–Bell Inequality via Filtered Random States. Entropy, 25(1), 2023. doi:10.3390/e25010094
[BibTeX]@ARTICLE{Mandarino2023, author = {Mandarino, Antonio and Scala, Giovanni}, title ="{On the Fidelity Robustness of CHSH–Bell Inequality via Filtered Random States}", year = {2023}, journal = {Entropy}, volume = {25}, number = {1}, doi = {10.3390/e25010094}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85146819535&doi=10.3390%2fe25010094&partnerID=40&md5=ebe61af5476ddda5ed5f36c2c2687acd}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 1; All Open Access, Gold Open Access, Green Open Access} } - Marek Winczewski, Tamoghna Das, John H. Selby, Karol Horodecki, Pawel Horodecki, Lukasz Pankowski, Marco Piani, and Ravishankar Ramanathan. Complete extension: the non-signalling analog of quantum purification. Quantum, 7, 2023. doi:10.22331/q-2023-11-03-1159
[BibTeX]@ARTICLE{Winczewski2023, author = {Winczewski, Marek and Das, Tamoghna and Selby, John H. and Horodecki, Karol and Horodecki, Pawel and Pankowski, Lukasz and Piani, Marco and Ramanathan, Ravishankar}, title ="{Complete extension: the non-signalling analog of quantum purification}", year = {2023}, journal = {Quantum}, volume = {7}, doi = {10.22331/q-2023-11-03-1159}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85176909214&doi=10.22331%2fq-2023-11-03-1159&partnerID=40&md5=450677e25e45ac6240c54772bd1d32f8}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 0; All Open Access, Gold Open Access, Green Open Access} } - Saverio Monaco, Oriel Kiss, Antonio Mandarino, Sofia Vallecorsa, and Michele Grossi. Quantum phase detection generalization from marginal quantum neural network models. Physical Review B, 107(8), 2023. doi:10.1103/PhysRevB.107.L081105
[BibTeX]@ARTICLE{Monaco2023, author = {Monaco, Saverio and Kiss, Oriel and Mandarino, Antonio and Vallecorsa, Sofia and Grossi, Michele}, title ="{Quantum phase detection generalization from marginal quantum neural network models}", year = {2023}, journal = {Physical Review B}, volume = {107}, number = {8}, doi = {10.1103/PhysRevB.107.L081105}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85148334135&doi=10.1103%2fPhysRevB.107.L081105&partnerID=40&md5=812ad0f3f3257a1a37ef2113df27843e}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 7; All Open Access, Green Open Access, Hybrid Gold Open Access} } - Tomasz Linowski, Konrad Schlichtholz, Giacomo Sorelli, Manuel Gessner, Mattia Walschaers, Nicolas Treps, and Łukasz Rudnicki. Application range of crosstalk-affected spatial demultiplexing for resolving separations between unbalanced sources. New Journal of Physics, 25(10), 2023. doi:10.1088/1367-2630/ad0173
[BibTeX]@ARTICLE{Linowski2023aa, author = {Linowski, Tomasz and Schlichtholz, Konrad and Sorelli, Giacomo and Gessner, Manuel and Walschaers, Mattia and Treps, Nicolas and Rudnicki, Łukasz}, title ="{Application range of crosstalk-affected spatial demultiplexing for resolving separations between unbalanced sources}", year = {2023}, journal = {New Journal of Physics}, volume = {25}, number = {10}, doi = {10.1088/1367-2630/ad0173}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85176464801&doi=10.1088%2f1367-2630%2fad0173&partnerID=40&md5=ef862b8e6d14cb1a37136530a6a723c6}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 0; All Open Access, Gold Open Access, Green Open Access} } - Marek Żukowski. A history of quantum entanglement and Bell’s inequality: Theoretical foundations for optical quantum experiments with entangled photons. Europhysics News, 54(1):16 – 19, 2023. doi:10.1051/epn/2023102
[BibTeX]@ARTICLE{Zukowski202316, author = {Żukowski, Marek}, title ="{A history of quantum entanglement and Bell's inequality: Theoretical foundations for optical quantum experiments with entangled photons}", year = {2023}, journal = {Europhysics News}, volume = {54}, number = {1}, pages = {16 – 19}, doi = {10.1051/epn/2023102}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85148531051&doi=10.1051%2fepn%2f2023102&partnerID=40&md5=261c81cb625bbd6a2dd723a09043d59e}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 0; All Open Access, Bronze Open Access, Green Open Access} } - Nicolás Gigena, Giovanni Scala, and Antonio Mandarino. Revisited aspects of the local set in CHSH Bell scenario. International Journal of Quantum Information, 21(7), 2023. doi:10.1142/S0219749923400051
[BibTeX]@ARTICLE{Gigena2023, author = {Gigena, Nicolás and Scala, Giovanni and Mandarino, Antonio}, title ="{Revisited aspects of the local set in CHSH Bell scenario}", year = {2023}, journal = {International Journal of Quantum Information}, volume = {21}, number = {7}, doi = {10.1142/S0219749923400051}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85146823397&doi=10.1142%2fS0219749923400051&partnerID=40&md5=81129b9aa487271f1857a6b1a8704e0b}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 1; All Open Access, Green Open Access} } - Tomasz Linowski, Konrad Schlichtholz, and Łukasz Rudnicki. Formal relation between Pegg-Barnett and Paul quantum phase frameworks. Physical Review A, 107(3), 2023. doi:10.1103/PhysRevA.107.033707
[BibTeX]@ARTICLE{Linowski2023ab, author = {Linowski, Tomasz and Schlichtholz, Konrad and Rudnicki, Łukasz}, title ="{Formal relation between Pegg-Barnett and Paul quantum phase frameworks}", year = {2023}, journal = {Physical Review A}, volume = {107}, number = {3}, doi = {10.1103/PhysRevA.107.033707}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85151284955&doi=10.1103%2fPhysRevA.107.033707&partnerID=40&md5=33a169b876fa6ffd925bb735577b6624}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 1; All Open Access, Green Open Access} } - Jay Lawrence, Marcin Markiewicz, and Marek Żukowski. Relative Facts of Relational Quantum Mechanics are Incompatible with Quantum Mechanics. Quantum, 7, 2023. doi:10.22331/Q-2023-05-23-1015
[BibTeX]@ARTICLE{Lawrence2023, author = {Lawrence, Jay and Markiewicz, Marcin and Żukowski, Marek}, title ="{Relative Facts of Relational Quantum Mechanics are Incompatible with Quantum Mechanics}", year = {2023}, journal = {Quantum}, volume = {7}, doi = {10.22331/Q-2023-05-23-1015}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85164435503&doi=10.22331%2fQ-2023-05-23-1015&partnerID=40&md5=bbb8659fedd570652d87d8c9e1357b58}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 1; All Open Access, Gold Open Access, Green Open Access} }
2022
- Tamoghna Das, Marcin Karczewski, Antonio Mandarino, Marcin Markiewicz, Bianka Woloncewicz, and Marek Zukowski. Wave-particle complementarity: Detecting violation of local realism with photon-number resolving weak-field homodyne measurements. New Journal of Physics, 24(3), 2022. doi:10.1088/1367-2630/ac54c8
[BibTeX]@ARTICLE{Das2022, author = {Das, Tamoghna and Karczewski, Marcin and Mandarino, Antonio and Markiewicz, Marcin and Woloncewicz, Bianka and Zukowski, Marek}, title ="{Wave-particle complementarity: Detecting violation of local realism with photon-number resolving weak-field homodyne measurements}", year = {2022}, journal = {New Journal of Physics}, volume = {24}, number = {3}, doi = {10.1088/1367-2630/ac54c8}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85126840402&doi=10.1088%2f1367-2630%2fac54c8&partnerID=40&md5=84280ede6a600a9ca9785aac109102e0}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 8; All Open Access, Gold Open Access, Green Open Access} } - Karol Horodecki, Marek Winczewski, and Siddhartha Das. Fundamental limitations on the device-independent quantum conference key agreement. Physical Review A, 105(2), 2022. doi:10.1103/PhysRevA.105.022604
[BibTeX]@ARTICLE{Horodecki2022aa, author = {Horodecki, Karol and Winczewski, Marek and Das, Siddhartha}, title ="{Fundamental limitations on the device-independent quantum conference key agreement}", year = {2022}, journal = {Physical Review A}, volume = {105}, number = {2}, doi = {10.1103/PhysRevA.105.022604}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85124528144&doi=10.1103%2fPhysRevA.105.022604&partnerID=40&md5=d2f12620f03238c3f285e83900545ec4}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 6; All Open Access, Green Open Access} } - Tamoghna Das, Marcin Karczewski, Antonio Mandarino, Marcin Markiewicz, Bianka Woloncewicz, and Marek Żukowski. Remarks about Bell-nonclassicality of a single photon. Physics Letters, Section A: General, Atomic and Solid State Physics, 435, 2022. doi:10.1016/j.physleta.2022.128031
[BibTeX]@ARTICLE{Das2022aa, author = {Das, Tamoghna and Karczewski, Marcin and Mandarino, Antonio and Markiewicz, Marcin and Woloncewicz, Bianka and Żukowski, Marek}, title ="{Remarks about Bell-nonclassicality of a single photon}", year = {2022}, journal = {Physics Letters, Section A: General, Atomic and Solid State Physics}, volume = {435}, doi = {10.1016/j.physleta.2022.128031}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85126969343&doi=10.1016%2fj.physleta.2022.128031&partnerID=40&md5=c4081abafd2110b02e35750e1dbc45a3}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 7} } - Tamoghna Das, Marcin Karczewski, Antonio Mandarino, Marcin Markiewicz, Bianka Woloncewicz, and Marek Zukowski. Comment on ‘Single particle nonlocality with completely independent reference states’. New Journal of Physics, 24(3), 2022. doi:10.1088/1367-2630/ac55b1
[BibTeX]@ARTICLE{Das2022ab, author = {Das, Tamoghna and Karczewski, Marcin and Mandarino, Antonio and Markiewicz, Marcin and Woloncewicz, Bianka and Zukowski, Marek}, title ="{Comment on 'Single particle nonlocality with completely independent reference states'}", year = {2022}, journal = {New Journal of Physics}, volume = {24}, number = {3}, doi = {10.1088/1367-2630/ac55b1}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85126846427&doi=10.1088%2f1367-2630%2fac55b1&partnerID=40&md5=bffb6920ce2bc6fd8dd66cd6413b8921}, type = {Review}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 6; All Open Access, Gold Open Access, Green Open Access} } - Marek Winczewski, Tamoghna Das, and Karol Horodecki. Limitations on a device-independent key secure against a nonsignaling adversary via squashed nonlocality. Physical Review A, 106(5), 2022. doi:10.1103/PhysRevA.106.052612
[BibTeX]@ARTICLE{Winczewski2022, author = {Winczewski, Marek and Das, Tamoghna and Horodecki, Karol}, title ="{Limitations on a device-independent key secure against a nonsignaling adversary via squashed nonlocality}", year = {2022}, journal = {Physical Review A}, volume = {106}, number = {5}, doi = {10.1103/PhysRevA.106.052612}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85143197902&doi=10.1103%2fPhysRevA.106.052612&partnerID=40&md5=df504f6a753ef8ea1d575ca39bd45b12}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 1; All Open Access, Green Open Access} } - Tamoghna Das, Marcin Karczewski, Antonio Mandarino, Marcin Markiewicz, and Marek Zukowski. Optimal Interferometry for Bell Nonclassicality Induced by a Vacuum-One-Photon Qubit. Physical Review Applied, 18(3), 2022. doi:10.1103/PhysRevApplied.18.034074
[BibTeX]@ARTICLE{Das2022ac, author = {Das, Tamoghna and Karczewski, Marcin and Mandarino, Antonio and Markiewicz, Marcin and Zukowski, Marek}, title ="{Optimal Interferometry for Bell Nonclassicality Induced by a Vacuum-One-Photon Qubit}", year = {2022}, journal = {Physical Review Applied}, volume = {18}, number = {3}, doi = {10.1103/PhysRevApplied.18.034074}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85139319612&doi=10.1103%2fPhysRevApplied.18.034074&partnerID=40&md5=b50e406712a5a4414554d13c1d283925}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 4; All Open Access, Green Open Access} } - Konrad Schlichtholz, Bianka Woloncewicz, and Marek Żukowski. Simplified quantum optical Stokes observables and Bell’s theorem. Scientific Reports, 12(1), 2022. doi:10.1038/s41598-022-14232-8
[BibTeX]@ARTICLE{Schlichtholz2022, author = {Schlichtholz, Konrad and Woloncewicz, Bianka and Żukowski, Marek}, title ="{Simplified quantum optical Stokes observables and Bell’s theorem}", year = {2022}, journal = {Scientific Reports}, volume = {12}, number = {1}, doi = {10.1038/s41598-022-14232-8}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85132106274&doi=10.1038%2fs41598-022-14232-8&partnerID=40&md5=55b8fba051a1c915585b7dad42fa717f}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 1; All Open Access, Gold Open Access, Green Open Access} } - Ayan Patra, Rivu Gupta, Saptarshi Roy, Tamoghna Das, and Aditi Sen(de). Quantum dense coding network using multimode squeezed states of light. Physical Review A, 106(5), 2022. doi:10.1103/PhysRevA.106.052607
[BibTeX]@ARTICLE{Patra2022, author = {Patra, Ayan and Gupta, Rivu and Roy, Saptarshi and Das, Tamoghna and Sen(de), Aditi}, title ="{Quantum dense coding network using multimode squeezed states of light}", year = {2022}, journal = {Physical Review A}, volume = {106}, number = {5}, doi = {10.1103/PhysRevA.106.052607}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85142935972&doi=10.1103%2fPhysRevA.106.052607&partnerID=40&md5=56d1e1d22629238ea55d9478618cfe3f}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 0; All Open Access, Green Open Access} } - Eneet Kaur, Karol Horodecki, and Siddhartha Das. Upper Bounds on Device-Independent Quantum Key Distribution Rates in Static and Dynamic Scenarios. Physical Review Applied, 18(5), 2022. doi:10.1103/PhysRevApplied.18.054033
[BibTeX]@ARTICLE{Kaur2022, author = {Kaur, Eneet and Horodecki, Karol and Das, Siddhartha}, title ="{Upper Bounds on Device-Independent Quantum Key Distribution Rates in Static and Dynamic Scenarios}", year = {2022}, journal = {Physical Review Applied}, volume = {18}, number = {5}, doi = {10.1103/PhysRevApplied.18.054033}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85143195921&doi=10.1103%2fPhysRevApplied.18.054033&partnerID=40&md5=80c7818ec97f36a4a42e4c93c836db62}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 5; All Open Access, Green Open Access} } - Konrad Schlichtholz, Antonio Mandarino, and Marek Żukowski. Bosonic fields in states with undefined particle numbers possess detectable non-contextuality features, plus more. New Journal of Physics, 24(10), 2022. doi:10.1088/1367-2630/ac919e
[BibTeX]@ARTICLE{Schlichtholz2022aa, author = {Schlichtholz, Konrad and Mandarino, Antonio and Żukowski, Marek}, title ="{Bosonic fields in states with undefined particle numbers possess detectable non-contextuality features, plus more}", year = {2022}, journal = {New Journal of Physics}, volume = {24}, number = {10}, doi = {10.1088/1367-2630/ac919e}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85139858013&doi=10.1088%2f1367-2630%2fac919e&partnerID=40&md5=b3006aa848cf347ccc30f59edd68192a}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 2; All Open Access, Gold Open Access, Green Open Access} } - Massimiliano Incudini, Fabio Tarocco, Riccardo Mengoni, Alessandra Di Pierro, and Antonio Mandarino. Computing graph edit distance on quantum devices. Quantum Machine Intelligence, 4(2), 2022. doi:10.1007/s42484-022-00077-x
[BibTeX]@ARTICLE{Incudini2022, author = {Incudini, Massimiliano and Tarocco, Fabio and Mengoni, Riccardo and Di Pierro, Alessandra and Mandarino, Antonio}, title ="{Computing graph edit distance on quantum devices}", year = {2022}, journal = {Quantum Machine Intelligence}, volume = {4}, number = {2}, doi = {10.1007/s42484-022-00077-x}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85137096138&doi=10.1007%2fs42484-022-00077-x&partnerID=40&md5=651095ebbca43147d535f9e0ff6c980f}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 0; All Open Access, Green Open Access, Hybrid Gold Open Access} } - Marcin Karczewski, Giovanni Scala, Antonio Mandarino, Ana Belén Sainz, and Marek Zukowski. Avenues to generalising Bell inequalities. Journal of Physics A: Mathematical and Theoretical, 55(38), 2022. doi:10.1088/1751-8121/ac8a28
[BibTeX]@ARTICLE{Karczewski2022, author = {Karczewski, Marcin and Scala, Giovanni and Mandarino, Antonio and Sainz, Ana Belén and Zukowski, Marek}, title ="{Avenues to generalising Bell inequalities}", year = {2022}, journal = {Journal of Physics A: Mathematical and Theoretical}, volume = {55}, number = {38}, doi = {10.1088/1751-8121/ac8a28}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85138220438&doi=10.1088%2f1751-8121%2fac8a28&partnerID=40&md5=91472f531716936f131024183c514955}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 2; All Open Access, Green Open Access, Hybrid Gold Open Access} } - Antonio Mandarino. Quantum Thermal Amplifiers with Engineered Dissipation. Entropy, 24(8), 2022. doi:10.3390/e24081031
[BibTeX]@ARTICLE{Mandarino2022, author = {Mandarino, Antonio}, title ="{Quantum Thermal Amplifiers with Engineered Dissipation}", year = {2022}, journal = {Entropy}, volume = {24}, number = {8}, doi = {10.3390/e24081031}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85137355076&doi=10.3390%2fe24081031&partnerID=40&md5=277c0f6c44a069133c4be2ea0f2ee4ad}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 2; All Open Access, Gold Open Access, Green Open Access} }
2021
- Časlav Brukner, Marek Żukowski, and Anton Zeilinger. The Essence of Entanglement. Fundamental Theories of Physics, 203:117 – 138, 2021. doi:10.1007/978-3-030-77367-0_6
[BibTeX]@ARTICLE{Brukner2021117, author = {Brukner, Časlav and Żukowski, Marek and Zeilinger, Anton}, title ="{The Essence of Entanglement}", year = {2021}, journal = {Fundamental Theories of Physics}, volume = {203}, pages = {117 – 138}, doi = {10.1007/978-3-030-77367-0_6}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117074344&doi=10.1007%2f978-3-030-77367-0_6&partnerID=40&md5=3447c09e20abc1ff51d48485e652cd3e}, type = {Book chapter}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 2} } - Siddhartha Das, Stefan Bäuml, Marek Winczewski, and Karol Horodecki. Universal Limitations on Quantum Key Distribution over a Network. Physical Review X, 11(4), 2021. doi:10.1103/PhysRevX.11.041016
[BibTeX]@ARTICLE{Das2021, author = {Das, Siddhartha and Bäuml, Stefan and Winczewski, Marek and Horodecki, Karol}, title ="{Universal Limitations on Quantum Key Distribution over a Network}", year = {2021}, journal = {Physical Review X}, volume = {11}, number = {4}, doi = {10.1103/PhysRevX.11.041016}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119098651&doi=10.1103%2fPhysRevX.11.041016&partnerID=40&md5=6531702c3d9ae85b494c63c589f15ac9}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 32; All Open Access, Gold Open Access, Green Open Access} } - Tamoghna Das, Marcin Karczewski, Antonio Mandarino, Marcin Markiewicz, Bianka Woloncewicz, and Marek Żukowski. Can single photon excitation of two spatially separated modes lead to a violation of Bell inequality via weak-field homodyne measurements?. New Journal of Physics, 23(7), 2021. doi:10.1088/1367-2630/ac0ffe
[BibTeX]@ARTICLE{Das2021aa, author = {Das, Tamoghna and Karczewski, Marcin and Mandarino, Antonio and Markiewicz, Marcin and Woloncewicz, Bianka and Żukowski, Marek}, title ="{Can single photon excitation of two spatially separated modes lead to a violation of Bell inequality via weak-field homodyne measurements?}", year = {2021}, journal = {New Journal of Physics}, volume = {23}, number = {7}, doi = {10.1088/1367-2630/ac0ffe}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85111184777&doi=10.1088%2f1367-2630%2fac0ffe&partnerID=40&md5=7d2df232b1516e52cd5b507837017a0e}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 11; All Open Access, Gold Open Access, Green Open Access} } - Antonio Mandarino, Karl Joulain, Melisa Domínguez Gómez, and Bruno Bellomo. Thermal Transistor Effect in Quantum Systems. Physical Review Applied, 16(3), 2021. doi:10.1103/PhysRevApplied.16.034026
[BibTeX]@ARTICLE{Mandarino2021, author = {Mandarino, Antonio and Joulain, Karl and Gómez, Melisa Domínguez and Bellomo, Bruno}, title ="{Thermal Transistor Effect in Quantum Systems}", year = {2021}, journal = {Physical Review Applied}, volume = {16}, number = {3}, doi = {10.1103/PhysRevApplied.16.034026}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85115893158&doi=10.1103%2fPhysRevApplied.16.034026&partnerID=40&md5=5f401bc5be71e7136e91db023491f160}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 11; All Open Access, Green Open Access} } - Konrad Schlichtholz, Bianka Woloncewicz, and Marek Zukowski. Nonclassicality of bright Greenberger-Horne-Zeilinger-like radiation of an optical parametric source. Physical Review A, 103(4), 2021. doi:10.1103/PhysRevA.103.042226
[BibTeX]@ARTICLE{Schlichtholz2021, author = {Schlichtholz, Konrad and Woloncewicz, Bianka and Zukowski, Marek}, title ="{Nonclassicality of bright Greenberger-Horne-Zeilinger-like radiation of an optical parametric source}", year = {2021}, journal = {Physical Review A}, volume = {103}, number = {4}, doi = {10.1103/PhysRevA.103.042226}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85105045644&doi=10.1103%2fPhysRevA.103.042226&partnerID=40&md5=800ecdce062a6e8efb272a232d405618}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 2; All Open Access, Green Open Access} }
2020
- Armin Tavakoli, Marek Żukowski, and Časlav Brukner. Does violation of a Bell inequality always imply quantum advantage in a communication complexity problem?. Quantum, 4, 2020. doi:10.22331/Q-2020-09-07-316
[BibTeX]@ARTICLE{Tavakoli2020, author = {Tavakoli, Armin and Żukowski, Marek and Brukner, Časlav}, title ="{Does violation of a Bell inequality always imply quantum advantage in a communication complexity problem?}", year = {2020}, journal = {Quantum}, volume = {4}, doi = {10.22331/Q-2020-09-07-316}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85091899804&doi=10.22331%2fQ-2020-09-07-316&partnerID=40&md5=9a416f2e4eb210e97695b89b79387795}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 11; All Open Access, Gold Open Access, Green Open Access} } - Saptarshi Roy, Tamoghna Das, and Aditi Sen(de). Computable genuine multimode entanglement measure: Gaussian versus non-Gaussian. Physical Review A, 102(1), 2020. doi:10.1103/PhysRevA.102.012421
[BibTeX]@ARTICLE{Roy2020, author = {Roy, Saptarshi and Das, Tamoghna and Sen(de), Aditi}, title ="{Computable genuine multimode entanglement measure: Gaussian versus non-Gaussian}", year = {2020}, journal = {Physical Review A}, volume = {102}, number = {1}, doi = {10.1103/PhysRevA.102.012421}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85089469408&doi=10.1103%2fPhysRevA.102.012421&partnerID=40&md5=465bd4e25728f64e54e236b03269c33a}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 4; All Open Access, Green Open Access} } - Saptarshi Roy, Tamoghna Das, Debmalya Das, Aditi Sen(De), and Ujjwal Sen. How efficient is transport of quantum cargo through multiple highways?. Annals of Physics, 422, 2020. doi:10.1016/j.aop.2020.168281
[BibTeX]@ARTICLE{Roy2020aa, author = {Roy, Saptarshi and Das, Tamoghna and Das, Debmalya and Sen(De), Aditi and Sen, Ujjwal}, title ="{How efficient is transport of quantum cargo through multiple highways?}", year = {2020}, journal = {Annals of Physics}, volume = {422}, doi = {10.1016/j.aop.2020.168281}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092224951&doi=10.1016%2fj.aop.2020.168281&partnerID=40&md5=22f4f5a5ad467f1d7b6b0a0b4516e6d8}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 4; All Open Access, Green Open Access} }
2019
- Junghee Ryu, Bianka Woloncewicz, Marcin Marciniak, Marcin Wieśniak, and Marek Żukowski. General mapping of multiqudit entanglement conditions to nonseparability indicators for quantum-optical fields. Physical Review Research, 1(3), 2019. doi:10.1103/PhysRevResearch.1.032041
[BibTeX]@ARTICLE{Ryu2019, author = {Ryu, Junghee and Woloncewicz, Bianka and Marciniak, Marcin and Wieśniak, Marcin and Żukowski, Marek}, title ="{General mapping of multiqudit entanglement conditions to nonseparability indicators for quantum-optical fields}", year = {2019}, journal = {Physical Review Research}, volume = {1}, number = {3}, doi = {10.1103/PhysRevResearch.1.032041}, OTurl = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85101953615&doi=10.1103%2fPhysRevResearch.1.032041&partnerID=40&md5=7191d908d1afc84dc9062c000ee01d41}, type = {Article}, publication_stage = {Final}, source = {Scopus}, OPTnote = {Cited by: 3; All Open Access, Gold Open Access, Green Open Access} }
arXiv preprints
2022
- Saverio Monaco, Oriel Kiss, Antonio Mandarino, Sofia Vallecorsa, and Michele Grossi. Quantum phase detection generalisation from marginal quantum neural network models. , 2022. doi:10.48550/ARXIV.2208.08748
[BibTeX] [Download PDF]@article{QCNN_ANNNI, doi = {10.48550/ARXIV.2208.08748}, url = {https://arxiv.org/abs/2208.08748}, author = {Monaco, Saverio and Kiss, Oriel and Mandarino, Antonio and Vallecorsa, Sofia and Grossi, Michele}, keywords = {Quantum Physics (quant-ph), FOS: Physical sciences, FOS: Physical sciences}, title = {Quantum phase detection generalisation from marginal quantum neural network models}, publisher = {arXiv}, year = {2022}, copyright = {arXiv.org perpetual, non-exclusive license} } - Michele Grossi, Oriel Kiss, Francesco De Luca, Carlo Zollo, Ian Gremese, and Antonio Mandarino. Finite-size criticality in fully connected spin models on superconducting quantum hardware. , 2022. doi:10.48550/ARXIV.2208.02731
[BibTeX] [Download PDF]@article{VQE_LMG, doi = {10.48550/ARXIV.2208.02731}, url = {https://arxiv.org/abs/2208.02731}, author = {Grossi, Michele and Kiss, Oriel and De Luca, Francesco and Zollo, Carlo and Gremese, Ian and Mandarino, Antonio}, keywords = {Quantum Physics (quant-ph), Statistical Mechanics (cond-mat.stat-mech), FOS: Physical sciences, FOS: Physical sciences}, title = {Finite-size criticality in fully connected spin models on superconducting quantum hardware}, publisher = {arXiv}, year = {2022}, copyright = {arXiv.org perpetual, non-exclusive license} } - Konrad Schlichtholz, Antonio Mandarino, and Marek Żukowski. Bosonic fields in states with undefined particle numbers possess detectable non-contextuality features, plus more . arXiv e-prints, pages arXiv.2205.09440, may 2022.
[BibTeX] [Abstract] [Download PDF]
Most of the paradoxical, for the classical intuition, features of quantum theory were formulated for situations which involve a fixed number of particles. While one can now find a formulation of Bell’s theorem for quantum fields, a Kochen-Specker-type reasoning is usually formulated for just one particle, or like in the case of Peres-Mermin square for two. A question emerges. Is it possible to formulate a contextuality proof for situation in which the numbers of particles are fundamentally undefined? We address this problem for bosonic fields. We introduce a representation of the su(2) algebra in terms of boson number states in two modes that allows us to assess nonclassicality of states of bosonic fields. As a figure of merit of a nonclassical behaviour we analyze first of all contextuality, and we show that the introduced observables are handy and efficient to reveal violation of local realism, and to formulate entanglement indicators. We construct a method which extends the Kochen-Specker contextuality to bosonic quantum fields. A form of an inequality is derived using a suitable version of the Peres-Mermin square. The entanglement indicators use a witness built with specially defined Pauli-like observables. Finally, Bell-nonclassicality is discussed: an inequality that involves the expectation values of pairs of the Pauli-like operators is presented. The introduced indicators are shown to be effective, e.g. they reveal nonclassicality in situaations involving undefined boson numbers. This is shown via quantum optical examples of the 2×2 bright squeezed vacuum state, and a recently discussed bright-GHZ state resulting from multiple three photon emissions in a parametric process.
@Article{Schlichtholz2022, author = { Schlichtholz, Konrad and Mandarino, Antonio and Żukowski, Marek }, journal = {arXiv e-prints}, title = { Bosonic fields in states with undefined particle numbers possess detectable non-contextuality features, plus more }, year = {2022}, month = may, pages = {arXiv.2205.09440}, abstract = { Most of the paradoxical, for the classical intuition, features of quantum theory were formulated for situations which involve a fixed number of particles. While one can now find a formulation of Bell's theorem for quantum fields, a Kochen-Specker-type reasoning is usually formulated for just one particle, or like in the case of Peres-Mermin square for two. A question emerges. Is it possible to formulate a contextuality proof for situation in which the numbers of particles are fundamentally undefined? We address this problem for bosonic fields. We introduce a representation of the su(2) algebra in terms of boson number states in two modes that allows us to assess nonclassicality of states of bosonic fields. As a figure of merit of a nonclassical behaviour we analyze first of all contextuality, and we show that the introduced observables are handy and efficient to reveal violation of local realism, and to formulate entanglement indicators. We construct a method which extends the Kochen-Specker contextuality to bosonic quantum fields. A form of an inequality is derived using a suitable version of the Peres-Mermin square. The entanglement indicators use a witness built with specially defined Pauli-like observables. Finally, Bell-nonclassicality is discussed: an inequality that involves the expectation values of pairs of the Pauli-like operators is presented. The introduced indicators are shown to be effective, e.g. they reveal nonclassicality in situaations involving undefined boson numbers. This is shown via quantum optical examples of the 2×2 bright squeezed vacuum state, and a recently discussed bright-GHZ state resulting from multiple three photon emissions in a parametric process. }, archiveprefix = {arXiv}, eid = {arXiv.2205.09440}, eprint = {2205.09440}, keywords = {Quantum Physics, Physical sciences }, primaryclass = {quant-ph}, url = {https://arxiv.org/abs/2205.09440}, } - Tomasz Linowski, Konrad Schlichtholz, and Łukasz Rudnicki. A formal relation between Pegg-Barnett and Paul quantum phase frameworks. arXiv e-prints, pages arXiv.2205.09481, may 2022.
[BibTeX] [Abstract] [Download PDF]
The problem of defining a Hermitian quantum phase operator is nearly as old as quantum mechanics itself. Throughout the years, a number of solutions was proposed, ranging from abstract operator formalisms to phase-space methods. In this work, we connect two of the most prominent approaches: Pegg-Barnett and Paul formalisms, by proving that the Paul formalism is equivalent to the Pegg-Barnett formalism applied to an infinitely amplified state. Our findings fill in a conceptual gap in the understanding of the quantum phase problem.
@Article{Linowski2022, author = {Linowski, Tomasz and Schlichtholz, Konrad and Rudnicki, Łukasz}, journal = {arXiv e-prints}, title = {A formal relation between Pegg-Barnett and Paul quantum phase frameworks}, year = {2022}, month = may, pages = {arXiv.2205.09481}, abstract = {The problem of defining a Hermitian quantum phase operator is nearly as old as quantum mechanics itself. Throughout the years, a number of solutions was proposed, ranging from abstract operator formalisms to phase-space methods. In this work, we connect two of the most prominent approaches: Pegg-Barnett and Paul formalisms, by proving that the Paul formalism is equivalent to the Pegg-Barnett formalism applied to an infinitely amplified state. Our findings fill in a conceptual gap in the understanding of the quantum phase problem.}, archiveprefix = {arXiv}, eid = {arXiv.2205.09481}, eprint = {2205.09481}, keywords = {Quantum Physics, Physical sciences}, primaryclass = {quant-ph}, url = {https://arxiv.org/abs/2205.09481}, } - Jay Lawrence, Marcin Markiewicz, and Marek Żukowski. Relative facts do not exist. Relational Quantum Mechanics is Incompatible with Quantum Mechanics. arXiv preprint arXiv:2208.11793, 2022.
[BibTeX]@article{Lawrence22RQM, title={Relative facts do not exist. {Relational Quantum Mechanics is Incompatible with Quantum Mechanics}}, author={Lawrence, Jay and Markiewicz, Marcin and Żukowski, Marek}, journal={arXiv preprint arXiv:2208.11793}, year={2022} }
2021
- Tamoghna Das, Marcin Karczewski, Antonio Mandarino, Marcin Markiewicz, Bianka Woloncewicz, and Marek Żukowski. No-go for device independent protocols with Tan-Walls-Collett `nonlocality of a single photon’. arXiv:2102.03254 [quant-ph], feb 2021. arXiv: 2102.03254
[BibTeX] [Abstract] [Download PDF]
We investigate the interferometric scheme put forward by Tan, Walls and Collett [Phys. Rev. Lett. \\textbackslashbf 66\, 256 (1991)] that aims to reveal Bell non-classicality of a single photon. By providing a local hidden variable model that reproduces their results, we decisively refute this claim. In particular, this means that the scheme cannot be used in device-independent protocols.
@article{das_no-go_2021, title = {No-go for device independent protocols with {Tan}-{Walls}-{Collett} `nonlocality of a single photon'}, url = {http://arxiv.org/abs/2102.03254}, abstract = {We investigate the interferometric scheme put forward by Tan, Walls and Collett [Phys. Rev. Lett. \{{\textbackslash}bf 66\}, 256 (1991)] that aims to reveal Bell non-classicality of a single photon. By providing a local hidden variable model that reproduces their results, we decisively refute this claim. In particular, this means that the scheme cannot be used in device-independent protocols.}, urldate = {2021-07-28}, journal = {arXiv:2102.03254 [quant-ph]}, author = {Das, Tamoghna and Karczewski, Marcin and Mandarino, Antonio and Markiewicz, Marcin and Woloncewicz, Bianka and Żukowski, Marek}, month = feb, year = {2021}, note = {arXiv: 2102.03254}, keywords = {Quantum Physics}, } - Tamoghna Das, Marcin Karczewski, Antonio Mandarino, Marcin Markiewicz, Bianka Woloncewicz, and Marek Zukowski. Can single photon excitation of two spatially separated modes lead to a violation of Bell inequality via homodyne measurements?. arXiv:2102.06689 [quant-ph], feb 2021. arXiv: 2102.06689
[BibTeX] [Abstract] [Download PDF]
We reconsider the all-optical homodyne-measurement based experimental schemes that aim to reveal Bell nonclassicality of a single photon, often termed `nonlocality’. We focus on the schemes put forward by Tan, Walls and Collett (TWC, 1991) and Hardy (1994). In the light of our previous work the Tan, Walls and Collett setup can be described by a precise local hidden variable model, hence the claimed nonclassicality of this proposal is apparent, whereas the nonclassicality proof proposed by Hardy is impeccable. In this work we resolve the following problem: which feature of the Hardy’s approach is crucial for its successful confirmation of nonclassicality. The scheme of Hardy differs from the Tan, Walls and Collett setup in two aspects. (i) It introduces a superposition of a single photon excitation with vacuum as the initial state of one of the input modes of a 50-50 beamsplitter, which creates the superposition state of two separable (exit) modes under investigation. (ii) In the final measurements Hardy’s proposal utilises a varying strengths of the local oscillator fields, whereas in the TWC case they are constant. In fact the local oscillators in Hardy’s scheme are either on or off (the local setting is specified by the presence or absence of the local auxiliary field). We show that it is the varying strength of the local oscillators, from setting to setting, which is the crucial feature enabling violation of local realism in the Hardy setup, whereas it is not necessary to use initial superposition of a single photon excitation with vacuum as the initial state of the input mode. Neither one needs to operate in the fully on/off detection scheme. Despite the failure of the Tan, Walls and Collett scheme in proving Bell nonclassicality, we show that their scheme can serve as an entanglement indicator.
@article{das_can_2021, title = {Can single photon excitation of two spatially separated modes lead to a violation of {Bell} inequality via homodyne measurements?}, author = {Das, Tamoghna and Karczewski, Marcin and Mandarino, Antonio and Markiewicz, Marcin and Woloncewicz, Bianka and Zukowski, Marek}, url = {http://arxiv.org/abs/2102.06689}, abstract = {We reconsider the all-optical homodyne-measurement based experimental schemes that aim to reveal Bell nonclassicality of a single photon, often termed `nonlocality'. We focus on the schemes put forward by Tan, Walls and Collett (TWC, 1991) and Hardy (1994). In the light of our previous work the Tan, Walls and Collett setup can be described by a precise local hidden variable model, hence the claimed nonclassicality of this proposal is apparent, whereas the nonclassicality proof proposed by Hardy is impeccable. In this work we resolve the following problem: which feature of the Hardy's approach is crucial for its successful confirmation of nonclassicality. The scheme of Hardy differs from the Tan, Walls and Collett setup in two aspects. (i) It introduces a superposition of a single photon excitation with vacuum as the initial state of one of the input modes of a 50-50 beamsplitter, which creates the superposition state of two separable (exit) modes under investigation. (ii) In the final measurements Hardy's proposal utilises a varying strengths of the local oscillator fields, whereas in the TWC case they are constant. In fact the local oscillators in Hardy's scheme are either on or off (the local setting is specified by the presence or absence of the local auxiliary field). We show that it is the varying strength of the local oscillators, from setting to setting, which is the crucial feature enabling violation of local realism in the Hardy setup, whereas it is not necessary to use initial superposition of a single photon excitation with vacuum as the initial state of the input mode. Neither one needs to operate in the fully on/off detection scheme. Despite the failure of the Tan, Walls and Collett scheme in proving Bell nonclassicality, we show that their scheme can serve as an entanglement indicator.}, urldate = {2021-07-28}, journal = {arXiv:2102.06689 [quant-ph]}, month = feb, year = {2021}, note = {arXiv: 2102.06689}, keywords = {Quantum Physics}, } - Tamoghna Das, Marcin Karczewski, Antonio Mandarino, Marcin Markiewicz, Bianka Woloncewicz, and Marek Żukowski. On detecting violation of local realism with photon-number resolving weak-field homodyne measurements. arXiv:2104.10703 [quant-ph], apr 2021. arXiv: 2104.10703
[BibTeX] [Abstract] [Download PDF]
Non-existence of a local hidden variables (LHV) model for a phenomenon benchmarks its use in device-independent quantum protocols. Nowadays photon-number resolving weak-field homodyne measurements allow realization of emblematic gedanken experiments. Alas, claims that we can have no LHV models for such experiments on (a) excitation of a pair of spatial modes by a single photon, and (b) two spatial modes in a weakly squeezed vacuum state, involving constant local oscillator strengths, are unfounded. For (a) an exact LHV model resolves the dispute on the “non-locality of a single photon” in its original formulation. It is measurements with local oscillators on or off that do not have LHV models.
@article{das_detecting_2021, title = {On detecting violation of local realism with photon-number resolving weak-field homodyne measurements}, url = {http://arxiv.org/abs/2104.10703}, abstract = {Non-existence of a local hidden variables (LHV) model for a phenomenon benchmarks its use in device-independent quantum protocols. Nowadays photon-number resolving weak-field homodyne measurements allow realization of emblematic gedanken experiments. Alas, claims that we can have no LHV models for such experiments on (a) excitation of a pair of spatial modes by a single photon, and (b) two spatial modes in a weakly squeezed vacuum state, involving constant local oscillator strengths, are unfounded. For (a) an exact LHV model resolves the dispute on the "non-locality of a single photon" in its original formulation. It is measurements with local oscillators on or off that do not have LHV models.}, urldate = {2021-07-28}, journal = {arXiv:2104.10703 [quant-ph]}, author = {Das, Tamoghna and Karczewski, Marcin and Mandarino, Antonio and Markiewicz, Marcin and Woloncewicz, Bianka and Żukowski, Marek}, month = apr, year = {2021}, note = {arXiv: 2104.10703}, keywords = {Quantum Physics}, } - Massimiliano Incudini, Fabio Tarocco, Riccardo Mengoni, Alessandra Di Pierro, and Antonio Mandarino. Benchmarking Small-Scale Quantum Devices on Computing Graph Edit Distance. arXiv e-prints, pages arXiv:2111.10183, nov 2021.
[BibTeX] [Abstract] [Download PDF]
Distance measures provide the foundation for many popular algorithms in Machine Learning and Pattern Recognition. Different notions of distance can be used depending on the types of the data the algorithm is working on. For graph-shaped data, an important notion is the Graph Edit Distance (GED) that measures the degree of (dis)similarity between two graphs in terms of the operations needed to make them identical. As the complexity of computing GED is the same as NP-hard problems, it is reasonable to consider approximate solutions. In this paper we present a comparative study of two quantum approaches to computing GED: quantum annealing and variational quantum algorithms, which refer to the two types of quantum hardware currently available, namely quantum annealer and gate-based quantum computer, respectively. Considering the current state of noisy intermediate-scale quantum computers, we base our study on proof-of-principle tests of the performance of these quantum algorithms.
@Article{Incudini2021a, author = {Incudini, Massimiliano and Tarocco, Fabio and Mengoni, Riccardo and Di Pierro, Alessandra and Mandarino, Antonio}, journal = {arXiv e-prints}, title = {Benchmarking {S}mall-{S}cale {Q}uantum {D}evices on {C}omputing {G}raph {E}dit {D}istance}, year = {2021}, month = nov, pages = {arXiv:2111.10183}, abstract = {Distance measures provide the foundation for many popular algorithms in Machine Learning and Pattern Recognition. Different notions of distance can be used depending on the types of the data the algorithm is working on. For graph-shaped data, an important notion is the Graph Edit Distance (GED) that measures the degree of (dis)similarity between two graphs in terms of the operations needed to make them identical. As the complexity of computing GED is the same as NP-hard problems, it is reasonable to consider approximate solutions. In this paper we present a comparative study of two quantum approaches to computing GED: quantum annealing and variational quantum algorithms, which refer to the two types of quantum hardware currently available, namely quantum annealer and gate-based quantum computer, respectively. Considering the current state of noisy intermediate-scale quantum computers, we base our study on proof-of-principle tests of the performance of these quantum algorithms.}, archiveprefix = {arXiv}, eid = {arXiv:2111.10183}, eprint = {2111.10183}, keywords = {Quantum Physics, Computer Science - Machine Learning}, primaryclass = {quant-ph}, url = {https://ui.adsabs.harvard.edu/abs/2021arXiv211110183I}, } - Ray Ganardi, Marek Miller, Tomasz Paterek, and Marek Żukowski. Hierarchy of correlation quantifiers comparable to negativity. arXiv e-prints, pages arXiv:2111.11887, nov 2021.
[BibTeX] [Abstract] [Download PDF]
Quantum systems generally exhibit different kinds of correlations. In order to compare them on equal footing, one uses the so-called distance-based approach where different types of correlations are captured by the distance to different set of states. However, these quantifiers are usually hard to compute as their definition involves optimization aiming to find the closest states within the set. On the other hand, negativity is one of the few computable entanglement monotones, but its comparison with other correlations required further justification. Here we place negativity as part of a family of correlation measures that has a distance-based construction. We introduce a suitable distance, discuss the emerging measures and their applications, and compare them to relative entropy-based correlation quantifiers. This work is a step towards correlation measures that are simultaneously comparable and computable.
@Article{Ganardi2021, author = {Ganardi, Ray and Miller, Marek and Paterek, Tomasz and {\.Z}ukowski, Marek}, journal = {arXiv e-prints}, title = {Hierarchy of correlation quantifiers comparable to negativity}, year = {2021}, month = nov, pages = {arXiv:2111.11887}, abstract = {Quantum systems generally exhibit different kinds of correlations. In order to compare them on equal footing, one uses the so-called distance-based approach where different types of correlations are captured by the distance to different set of states. However, these quantifiers are usually hard to compute as their definition involves optimization aiming to find the closest states within the set. On the other hand, negativity is one of the few computable entanglement monotones, but its comparison with other correlations required further justification. Here we place negativity as part of a family of correlation measures that has a distance-based construction. We introduce a suitable distance, discuss the emerging measures and their applications, and compare them to relative entropy-based correlation quantifiers. This work is a step towards correlation measures that are simultaneously comparable and computable.}, archiveprefix = {arXiv}, eid = {arXiv:2111.11887}, eprint = {2111.11887}, keywords = {Quantum Physics}, primaryclass = {quant-ph}, url = {https://ui.adsabs.harvard.edu/abs/2021arXiv211111887G}, } - Marek Winczewski, Antonio Mandarino, Michał Horodecki, and Robert Alicki. Bypassing the Intermediate Times Dilemma for Open Quantum System. , 2021. doi:10.48550/ARXIV.2106.05776
[BibTeX] [Download PDF]@article{arXiv_Bypasing_Dillema, doi = {10.48550/ARXIV.2106.05776}, url = {https://arxiv.org/abs/2106.05776}, author = {Winczewski, Marek and Mandarino, Antonio and Horodecki, Michał and Alicki, Robert}, keywords = {Quantum Physics (quant-ph), FOS: Physical sciences, FOS: Physical sciences}, title = {Bypassing the Intermediate Times Dilemma for Open Quantum System}, publisher = {arXiv}, year = {2021}, copyright = {Creative Commons Attribution 4.0 International} } - Tamoghna Das, Marcin Karczewski, Antonio Mandarino, Marcin Markiewicz, and Marek Żukowski. Optimal interferometry for Bell$-$nonclassicality by a vacuum$-$one$-$photon qubit. , 2021. doi:10.48550/ARXIV.2109.10170
[BibTeX] [Download PDF]@article{https://doi.org/10.48550/arxiv.2109.10170, doi = {10.48550/ARXIV.2109.10170}, url = {https://arxiv.org/abs/2109.10170}, author = {Das, Tamoghna and Karczewski, Marcin and Mandarino, Antonio and Markiewicz, Marcin and Żukowski, Marek}, keywords = {Quantum Physics (quant-ph), FOS: Physical sciences, FOS: Physical sciences}, title = {Optimal interferometry for {Bell}$-$nonclassicality by a vacuum$-$one$-$photon qubit}, publisher = {arXiv}, year = {2021}, copyright = {arXiv.org perpetual, non-exclusive license} }
Group members
Get to know the people behind ICTQT.
Former members
Tamoghna Das (post-doc in 2019-2023), Bianka Wołoncewicz (PhD student in 2018-2023), Sujan Vijayaraj (MSc student in 2021-2023), Ray Ganardi (MSc student in 2020), Konrad Schlichtholz (MSc student in 2019-2020), Jacek Gruca (PhD student in 2018-2019)
Keywords: quantum optics, multiphoton interferometry, reduction of communication complexity, foundations of quantum physics, quantum information, Bell’s theorem, quantum optical circuits.