Format results
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The Quest for Localization
Juan José León García - Instituto de Física Fundamental (IFF - CSIC)
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Entanglement of a Relativistic Field in the Vacuum State
Benni Reznik - Tel Aviv University
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Quantum Teleportation from Alice to Rob in Vacuum
Shih-Yuin Lin - National Changhua University of Education
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Geometric Discord in Non-Inertial Frames
Eric Brown - University of Chicago
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Tripartite Entanglement, Svetlichny Inequalities, and Non-inertial Observers
Robert Mann - University of Waterloo
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Towards Universal Quantum Computation Out of Relativistic Motion of Particle Detectors
David Aasen - California Institute of Technology
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Nonlocality, Entanglement Witnesses and Supra-Correlations
Paul Alsing - United States Air Force Research Laboratory
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Quantum Interference of “Clocks”
Časlav Brukner - Austrian Academy of Sciences
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Localised Detection of Relativistic Quantum Fields in Non-Inertial Frames
Andrzej Dragan - University of Warsaw
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The Quest for Localization
Juan José León García - Instituto de Física Fundamental (IFF - CSIC)
This talk aims to review the obstacles met in QFT to reach an appropriate definition for such a basic concept as localization. The anti-local character of the square root of the "- Laplace-Beltrami + mass^2" operator prevents the existence of localized states with a finite number of quanta. (Bosonic… -
Entanglement of a Relativistic Field in the Vacuum State
Benni Reznik - Tel Aviv University
We discuss gedanken experiments for measuring local and non-local observables in QFT that respect causality, and can by used to test the entanglement between two spatially distant regions in the vacuum. It is shown that the entanglement decays exponentially with the distance between the regions and… -
Physical Results with Fermions in RQI
A number of works in the field of relativistic quantum information have been devoted to the study of entanglement on certain simple families of Unruh-mode entangled states in non-inertial frames. In the fermionic case remarkable results such as the survival of entanglement at infinite acceleration… -
Quantum Teleportation from Alice to Rob in Vacuum
Shih-Yuin Lin - National Changhua University of Education
We consider quantum teleportation of continuous variables in a relativistic system with the Unruh-DeWitt detectorscoupled to a common quantum field initially in the Minkowski vacuum. An unknown coherent state of an Unruh-DeWitt detector is teleported from one inertial agent (Alice) to an almost… -
Geometric Discord in Non-Inertial Frames
Eric Brown - University of Chicago
I review the recent work performed on computing the geometric discord in non-inertial frames. We consider the well-known case of an inertially maximally entangled state shared by inertial Alice and non-inertial Robb. It is found that for high accelerations the geometric discord decays to a… -
Tripartite Entanglement, Svetlichny Inequalities, and Non-inertial Observers
Robert Mann - University of Waterloo
I discuss the behaviour of bipartite and tripartite non-locality between fermionic entangled states shared by observers, one of whom uniformly accelerates. Although fermionic entanglement persists for arbitrarily large acceleration, the Bell/CHSH inequalities cannot be violated for sufficiently… -
Boundary Effects on Quantum Entanglement and its Dynamics in a Detector-Field System
We analyze an exactly solvable model consisting of an inertial Unruh-DeWitt detector which interacts linearly with a massless quantum field in Minkowski spacetime with a perfectly reflecting flat plane boundary. This model is related to proposed mirror-field superposition and relevant experiments in… -
Towards Universal Quantum Computation Out of Relativistic Motion of Particle Detectors
David Aasen - California Institute of Technology
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Nonlocality, Entanglement Witnesses and Supra-Correlations
Paul Alsing - United States Air Force Research Laboratory
While entanglement is believed to underlie the power of quantum computation and communication, it is not generally well understood for multipartite systems. Recently, it has been appreciated that there exists proper no-signaling probability distributions derivable from operators that do not… -
Quantum Interference of “Clocks”
Časlav Brukner - Austrian Academy of Sciences
Experimental tests of general relativity performed so far involve systems that can be effectively described by classical physics. On the other hand, observed gravity effects on quantum systems do not go beyond the Newtonian limit of the theory. In light of the conceptual differences between general… -
Localised Detection of Relativistic Quantum Fields in Non-Inertial Frames
Andrzej Dragan - University of Warsaw
We introduce a novel approach to measurements in QFT in non-inertial frames. A simple, localised, analytical model of state detection allows us to study all the standard questions of RQI and yielding simple answers with a clear physical interpretation. We apply the model to investigate extraction of… -
Localised Detection of the Unruh Effect
I will discuss a new proposal with the potential to experimentally probe the validity of Rindler quantisation from the recent completely localized framework of non-inertial projective detectors of quantum fields.