Bell Nonlocality and the Reality of Quantum Wavefunction

Speaker: Manik Banik, Indian Institute of Science Education and Research (Thiruvananthapuram) Abstract Status of quantum wavefunction is one of the most debated issues in quantum foundations -- whether it corresponds directly to the reality or just represents knowledge or information about some aspect of reality. In this work we propose a ψ-ontology theorem addressing this […]

Speaker: Giovanni Scala, University of Bari Abstract Wave-particle duality is considered to be one of the true misteries of quantum theory. However its core phenomenology can be reproduced by a local and noncontextual ontological model for particularly designed interferometric setup. Open is the question whether there is a connection between wave-particlle duality and contextuality in general scenarios. […]

Speaker: Victoria Wright, ICTQT Abstract General probabilistic theories are shown to admit a Gleason-type theorem if and only if they satisfy the no-restriction hypothesis, or a "noisy" version of the hypothesis. Therefore, in precisely these theories we recover the state space by assuming that (i) states consistently assign probabilities to measurement outcomes and (ii) there […]

Speaker: Marcin Łobejko, UG / ICTQT Abstract The minimal-coupling quantum heat engine is a thermal machine consisting of an explicit energy storage system, heat baths, and a working body, which couples alternatively to subsystems through discrete steps - energy conserving two-body quantum operations. Within this paradigm, it is presented a general framework of quantum thermodynamics, […]

Speaker: Gláucia Murta, Heinrich-Heine-Universitat Dusseldorf Abstract Going beyond the simple two-party scenario of quantum key distribution, we consider N parties who wish to certify security against a potential eavesdropper in a cryptographic task. Moreover, we consider the very adversarial scenario in which the parties make no assumption about the underlying quantum system or the internal […]

Speaker: Máté Farkas Abstract

Speaker: Borhan Ahmadi ICTQT Abstract I am going to give a controversial seminar concerning entropy production in quantum thermodynamics. I will show that there exists a fundamental difference between microscopic quantum thermodynamics and macroscopic classical thermodynamics. It will be proved that the entropy production in quantum thermodynamics always vanishes for both closed and open quantum […]

ConferenceKCIK online session: Current Trends in Quantum Information Programme 10:00 Opening of the session including Golden, Silver and Bronze KCIK Award results for 2019 A) keynote speakers 10:15 - 10:55 David de Vincenzo (Juelich): Blind Oracle Quantum Computation 11:00 - 11:40 Nicolas Gisin (Geneva): Non-locality in Networks 11:45-12:00 coffee break B) talks of Laureates 12:00 […]

Speaker: Gláucia Murta, Heinrich-Heine-Universitat Dusseldorf Abstract Going beyond the simple two-party scenario of quantum key distribution, we consider N parties who wish to certify security against a potential eavesdropper in a cryptographic task. Moreover, we consider the very adversarial scenario in which the parties make no assumption about the underlying quantum system or the internal […]

Speaker: Máté Farkas, UG/ICTQT Abstract As quantum technologies advance, the certification of high-dimensional quantum devices becomes more and more relevant. This is essential both for verifying the outcome of quantum computations, and for guaranteeing the security of cryptographic devices. In this talk, I will focus on the certification of quantum measurement devices performing measurements in […]