Conference

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Vacuum Entanglement and Gauge Symmetry
June 27, 2012

PIRSA:12060067
Quantum Fields and Strings
Black Hole Entrophy Related to Measures of Entanglement

Peter Levay Budapest University of Technology and Economics

June 27, 2012

PIRSA:12060039
Black Holes and Qubits

Michael Duff Imperial College London

June 27, 2012

PIRSA:12060038
Towards Quantum Science Experiments with Satellites

Thomas Jennewein Institute for Quantum Computing (IQC)

June 26, 2012

PIRSA:12060057
Relativistic Quantum Information anRelativistic Quantum Optics: towards experiments to reveal quantum effects provoked by gravity

Eduardo Martin-Martinez University of Waterloo

June 26, 2012

PIRSA:12060043
On-chip Extraction of Quantum Correlations from the Vacuum

June 26, 2012

PIRSA:12060056
Entanglement Resonances

June 26, 2012

PIRSA:12060055
Finite Size Detectors in RQI

Antony Lee University of Nottingham

June 26, 2012

PIRSA:12060054
Quantum Time-Like Curves: From Thought Experiment to Real Experiment

June 26, 2012

PIRSA:12060053
Localised Detection of the Unruh Effect

June 26, 2012

PIRSA:12060052
Localised Detection of Relativistic Quantum Fields in Non-Inertial Frames

Andrzej Dragan University of Warsaw

June 26, 2012

PIRSA:12060040
Quantum Interference of “Clocks”

Časlav Brukner Institute for Quantum Optics and Quantum Information (IQOQI) - Vienna

June 26, 2012

PIRSA:12060050

Vacuum Entanglement and Gauge Symmetry
June 27, 2012

PIRSA:12060067
Quantum Fields and Strings
Black Hole Entrophy Related to Measures of Entanglement

Peter Levay Budapest University of Technology and Economics

June 27, 2012

PIRSA:12060039

Recently striking connections have been discovered between the research fields of black hole soultions in string theory and the one of entanglement measures in quantum entanglement theory.For the emerging research field the term The Black Hole/Qubit Correspondence has been coined. The basic idea is that wrapping configurations of extended objects in extra dimensions can give rise to interesting realizations of entangled systems and black holes at the same time. The geometry of the extra dimensions and the wrapping type determines the entangled system in question. Usually as the extra dimensional spaces Calabi-Yau manifolds are chosen. In this talk I give some hints how this constraint could be relaxed. These considerations might substantially generalize the range of validity of the Black-Hole/Qubit correspondence.
Black Holes and Qubits

Michael Duff Imperial College London

June 27, 2012

PIRSA:12060038

Two different branches of theoretical physics, string theory and quantum information theory (QIT), share many of the same features, allowing knowledge on one side to provide new insights on the other. In particular the matching of the classification of stringy black holes and the classification of four-qubit entanglement provides a falsifiable prediction in the field of QIT.
Towards Quantum Science Experiments with Satellites

Thomas Jennewein Institute for Quantum Computing (IQC)

June 26, 2012

PIRSA:12060057

Space offers a very unique environment for quantum physics experiments at regimes for distance and velocity not possible on ground. In the recent years there have been a range of theoretical and experimental studies towards the feasibility of performing quantum physics and quantum information science experiments in space. The most advanced quantum application is quantum cryptography, known as quantum key distribution (QKD), which can be extended to global distances by bringing suitable quantum systems into space. It is interesting to note that with quantum satellites in Earth's orbit, we will be able to perform tests on the validity of quantum physics and entanglement at huge length scales and velocities. This could provide a possible route towards gaining insights into the interplay of quantum physics and relativity. I will review some of the interesting quantum entanglement tests that can be performed with satellites in space. I will also outline a proposed satellite mission that is based on existing technology on a small-scale satellite, and could be a first important step into this direction.
Relativistic Quantum Information anRelativistic Quantum Optics: towards experiments to reveal quantum effects provoked by gravity

Eduardo Martin-Martinez University of Waterloo

June 26, 2012

PIRSA:12060043

We will explore different results on relativistic quantum information and general relativistic quantum optics whose aim is to provide scenarios where relativistic quantum effects can be experimentally accessible. Traditionally, relativistic quantum information has been far away from the experimental test, but the discipline is close to the transition point where experimental outcomes will soon arise. Not only to bestow experimental proof on long ago predicted but still undetected phenomena (such as the Unruh and Hawking effects), but also to provide insight into the relationship of general relativity and quantum theory, and to serve as a source of new quantum technologies.
We will show how it is possible to extract timelike and spacelike quantum correlations from the vacuum state of the field in a tabletop experiment, and how to use it to build a quantum memory. We will see how geometric phases can help to detect the Unruh effect and how to use what we learn from that setting to build a quantum thermometer. Finally we will discuss how quantum simulators can be applied to the study of quantum effects of gravity, and used to predict experimental scenarios way beyond current computational power of classical computers.
On-chip Extraction of Quantum Correlations from the Vacuum

June 26, 2012

PIRSA:12060056
Entanglement Resonances

June 26, 2012

PIRSA:12060055

We investigate entanglement creation between modes of a quantum field contained within a cavity which undergoes noninertial motion. We find that, in the the low acceleration regime, or equivalently in the small cavity regime, entanglement can be created from initially separable states and it can be linearly increased by repeating travel scenarios. We are able to fin analytically how all the parameter involved affect the entanglement. We suggest that this can be of interest when looking for experimental veriications of predictions within the field of relativistic quantum information.
Finite Size Detectors in RQI

Antony Lee University of Nottingham

June 26, 2012

PIRSA:12060054
Quantum Time-Like Curves: From Thought Experiment to Real Experiment

June 26, 2012

PIRSA:12060053

Thought experiments involving quantum mechanics in the presence of closed time-like curves (CTCs) seem to have little to do with reality. However, even particles that traverse the CTC passively and without interactions can lead to highly non-trivial effects, such as the maximal violation of the uncertainty principle. Moreover, these effects may carry over to curved space-times without CTCs, presenting novel opportunities for testing non-standard physics in the relativistic regime.
Localised Detection of the Unruh Effect

June 26, 2012

PIRSA:12060052

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.
Localised Detection of Relativistic Quantum Fields in Non-Inertial Frames

Andrzej Dragan University of Warsaw

June 26, 2012

PIRSA:12060040

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 the entanglement from the vacuum, completely characterize entangled state of two localised inertial wave-packets in the accelerating frame and study the entanglement degradation as a function of the proper acceleration of the detector.
Quantum Interference of “Clocks”

Časlav Brukner Institute for Quantum Optics and Quantum Information (IQOQI) - Vienna

June 26, 2012

PIRSA:12060050

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 relativity and quantum mechanics, as well as those of finding a unified theoretical framework for the two theories, it is of particular interest to look for feasible experiments that can only be explained if both theories apply. We propose testing general relativistic time dilation with a single “clock” in a superposition of two paths in space-time, along which time flows at different rates. We show that the interference visibility in such an experiment will decrease to the extent to which the path information becomes available from reading out the time from the “clock”. This effect would provide the first test of the genuine general relativistic notion of time in quantum mechanics. We consider implementation of the “clock” in evolving internal degrees of freedom of a massive particle and, alternatively, in the external degree of a photon and analyze the feasibility of the experiment.

Title	Speaker(s)	Date	Talk Type	Info link
Vacuum Entanglement and Gauge Symmetry		2012-06-27	Conference	View details
Black Hole Entrophy Related to Measures of Entanglement	Peter Levay	2012-06-27	Conference	View details
Black Holes and Qubits	Michael Duff	2012-06-27	Conference	View details
Towards Quantum Science Experiments with Satellites	Thomas Jennewein	2012-06-26	Conference	View details
Relativistic Quantum Information anRelativistic Quantum Optics: towards experiments to reveal quantum effects provoked by gravity	Eduardo Martin-Martinez	2012-06-26	Conference	View details
On-chip Extraction of Quantum Correlations from the Vacuum		2012-06-26	Conference	View details
Entanglement Resonances		2012-06-26	Conference	View details
Finite Size Detectors in RQI	Antony Lee	2012-06-26	Conference	View details
Quantum Time-Like Curves: From Thought Experiment to Real Experiment		2012-06-26	Conference	View details
Localised Detection of the Unruh Effect		2012-06-26	Conference	View details
Localised Detection of Relativistic Quantum Fields in Non-Inertial Frames	Andrzej Dragan	2012-06-26	Conference	View details
Quantum Interference of “Clocks”	Časlav Brukner	2012-06-26	Conference	View details

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