Quantum Gases in Space

Quantum Gases in Space

Date: 2022-05-11
Time: 12:30
Location: Center for Theoretical Physics Colloquium
seminar
Speaker: Naceur Gaaloul Abstract Atom interferometry for extended drift times promise a major leap in improving precision and accuracy of matter-wave sensors. When taking advantage of the unique space environment for example, fundamental tests challenging the state-of-the-art can be performed using quantum gases systems. The use of cold atoms as a source for such sensors […]

Thirty-six entangled officers of Euler: quantum solution of a classically impossible problem

Date: 2022-04-27
Time: 12:30
Location: Center for Theoretical Physics Colloquium
seminar
Speaker: Karol Życzkowski (CFT, PAS and Jagiellonian University) Abstract Classical combinatorial designs are composed of elements of a finite set and arranged with a certain symmetry and balance. A simple example of a combinatorial design is given by a single Latin square: square array of size d filled with d copies of d different symbols, […]

Quantifying non-classicality via Local Operations and Shared Randomness

Date: 2022-05-09
Time: 14:15
Location: Quantum Chaos and Quantum Information (Jagiellonian University)
seminar
Speaker: Ana Belen Sainz (University of Gdansk) Abstract In this talk I will motivate Local Operations and Shared Randomness (LOSR) as a paradigm to quantify non-classical resources, in contrast to Local Operations and Classical Communication (LOCC). I will provide examples of the resource-theoretic study of entanglement, Bell non-classicality, and Einstein-Podolsky-Rosen steering, that stems from this […]

Convex-roof entanglement measures of density matrices block diagonal in disjoint subspaces for the study of thermal states

Date: 2022-04-25
Time: 14:15
Location: Quantum Chaos and Quantum Information (Jagiellonian University)
seminar
Speaker:  Katarzyna Roszak (Institute of Physics, Czech Academy of Sciences) Abstract We provide a proof that entanglement of any density matrix which block diagonal in subspaces which are disjoint in terms of the Hilbert space of one of the two potentially entangled subsystems can simply be calculated as the weighted average of entanglement present within […]

Quantum effects in biological systems

Date: 2022-04-22
Time: 12:15
Location: IFTIA Seminar (room 361)
seminar
Speaker: Kai Sheng Lee Abstract Quantum mechanics is at its hearts the study of nature at the fundamental level of atoms and subatomic particles. Made up of these same atoms and subatomic particles, biological systems are also expected to follow quantum mechanics to some extent. The most well-known example (and still debated) is in magnetoreception, […]

Genuine multipartite entanglement and nonlocality in pair-entangled network states

Date: 2022-04-20
Time: 15:15
Location: Quantum Information and Quantum Computing Working Group (CTP PAS)
seminar
Speaker: Julio de Vicente (Universidad Carlos III de Madrid) Abstract The study of entanglement and nonlocality in multipartite quantum states plays a major role in quantum information theory and genuine multipartite entanglement (GME) and nonlocality (GMNL) signal some of its strongest forms for applications. However, their characterization for general (mixed) states is a highly nontrivial […]

Quantum reference frames: towards a quantum description of space and time

Date: 2022-04-13
Time: 12:30
Location: Center for Theoretical Physics Colloquium
seminar
Speaker: Flaminia Giacomini Abstract In physics, observations are typically made with respect to a frame of reference. Although reference frames are usually not considered as degrees of freedom, in practical situations it is a physical system that constitutes a reference frame. Can a quantum system be considered as a reference frame and, if so, which […]

Degradation of the resource state in the deterministic port-based teleportation scheme. 

Date: 2022-04-08
Time: 12:15
Location: room no. 361 at IFTiA
Speaker: Piotr Kopszak  Abstract Port-based teleportation (PBT) is a quantum teleportation protocol, in which the parties exploit joint measurements performed on $N$ shared $d$-dimensional maximally entangled pairs (the resource) and the state to be teleported, with the addition of the one-way classical communication. The lack of correction in the last step is an essential feature […]

Degradation of the resource state in the deterministic port-based teleportation scheme

Date: 2022-04-08
Time: 12:15
Location: IFTIA Seminar (room 361)
seminar
Speaker: Piotr Kopszak Abstract Port-based teleportation (PBT) is a quantum teleportation protocol, in which the parties exploit joint measurements performed on $N$ shared $d$-dimensional maximally entangled pairs (the resource) and the state to be teleported, with the addition of the one-way classical communication. The lack of correction in the last step is an essential feature […]
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