报告摘要 |
Quantum information theory is built upon the realisation that quantum
resources such as superposition and entanglement can be exploited for novel
or enhanced ways of processing, encoding and manipulating information,
such as quantum cryptography, teleportation, and quantum computing. We
now know that there is potentially much more beyond entanglement behind
the power of quantum processors. There are more general forms of quantum
correlations, which have been identified in almost all quantum states, can
survive up to high temperatures and macroscopic scales, and have been
linked to the speed-up of quantum devices over classical ones in the presence
of noise and to an enhanced precision in metrological settings. Their
presence represents, among other things, a signature that quantumness
extends far beyond the microworld. In this Colloquium I will give an
overview of the current quest for a proper understanding and
characterisation of the border between classical and quantum correlations in
composite systems, and provide an outlook of the different applications in
which quantumness beyond entanglement looks fit to play a key role.
报告人简介: Gerardo Adesso is an Associate Professor at the University of Nottingham
(UK) and the head of the Quantum Correlations group,
http://quantumcorrelations.weebly.com. He obtained his PhD from the
University of Salerno (Italy) in 2007. He joined Nottingham in 2009 after
postdoctoral positions in Salerno, Rome and Barcelona. His main interests are
in the characterisation, quantification and operational interpretation of
quantum correlations in composite systems, including entanglement,
nonlocality, steering, and discord. He has contributed significantly to the
development of quantum information theory with Gaussian states of
continuous variable systems. He has published over 90 articles, delivered over
60 invited talks, and attracted over 2000 citations.
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