CORRELATIONS IN QUANTUM PHYSICS

We provide a historical perspective of how the notion of correlations has evolved within quantum physics. We begin by reviewing Shannon's information theory and its first application in quantum physics, due to Everett, in explaining the information conveyed during a quantum measurement. This na...

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Päätekijät: Dorner, R, Vedral, V
Aineistotyyppi: Journal article
Kieli:English
Julkaistu: 2013
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author Dorner, R
Vedral, V
author_facet Dorner, R
Vedral, V
author_sort Dorner, R
collection OXFORD
description We provide a historical perspective of how the notion of correlations has evolved within quantum physics. We begin by reviewing Shannon's information theory and its first application in quantum physics, due to Everett, in explaining the information conveyed during a quantum measurement. This naturally leads us to Lindblad's information theoretic analysis of quantum measurements and his emphasis of the difference between the classical and quantum mutual information. After briefly summarizing the quantification of entanglement using these ideas, we arrive at the concept of quantum discord, which naturally captures the boundary between entanglement and classical correlations. Finally we discuss possible links between discord, which the generation of correlations in thermodynamic transformations of coupled harmonic oscillators. © 2013 World Scientific Publishing Company.
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spelling oxford-uuid:46eae1c0-b60c-4410-a2e5-0eb56530b3be2022-03-26T15:16:54ZCORRELATIONS IN QUANTUM PHYSICSJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:46eae1c0-b60c-4410-a2e5-0eb56530b3beEnglishSymplectic Elements at Oxford2013Dorner, RVedral, VWe provide a historical perspective of how the notion of correlations has evolved within quantum physics. We begin by reviewing Shannon's information theory and its first application in quantum physics, due to Everett, in explaining the information conveyed during a quantum measurement. This naturally leads us to Lindblad's information theoretic analysis of quantum measurements and his emphasis of the difference between the classical and quantum mutual information. After briefly summarizing the quantification of entanglement using these ideas, we arrive at the concept of quantum discord, which naturally captures the boundary between entanglement and classical correlations. Finally we discuss possible links between discord, which the generation of correlations in thermodynamic transformations of coupled harmonic oscillators. © 2013 World Scientific Publishing Company.
spellingShingle Dorner, R
Vedral, V
CORRELATIONS IN QUANTUM PHYSICS
title CORRELATIONS IN QUANTUM PHYSICS
title_full CORRELATIONS IN QUANTUM PHYSICS
title_fullStr CORRELATIONS IN QUANTUM PHYSICS
title_full_unstemmed CORRELATIONS IN QUANTUM PHYSICS
title_short CORRELATIONS IN QUANTUM PHYSICS
title_sort correlations in quantum physics
work_keys_str_mv AT dornerr correlationsinquantumphysics
AT vedralv correlationsinquantumphysics