General Probabilistic Theories with a Gleason-type Theorem

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 […]

Speaker: David Schmid, University of Waterloo / Perimeter Institute Abstract A standard approach to quantifying resources is to determine which operations on the resources are freely available and to deduce the ordering relation among the resources that these operations induce. If the resource of interest is the nonclassicality of the correlations embodied in a quantum state, […]

Speaker: Akshata Shenoy ICTQT Abstract Modern communication strives towards provably secure systems which can be widely deployed. Quantum key distribution provides a methodology to verify the integrity and security of a key exchange based on physical laws. However, physical systems often fall short of theoretical models, meaning they can be compromised through uncharacterized side-channels. The […]