Wave-Particle Duality of Many-Body Quantum States

We formulate a general theory of wave-particle duality for many-body quantum states, which quantifies how wavelike and particlelike properties balance each other. Much as in the well-understood single-particle case, which-way information—here, on the level of many-particle paths—lends particle chara...

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Autores principales:	Christoph Dittel, Gabriel Dufour, Gregor Weihs, Andreas Buchleitner
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/586e4bf99c494f258036105a9a905686
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spelling	oai:doaj.org-article:586e4bf99c494f258036105a9a9056862021-12-02T16:46:05ZWave-Particle Duality of Many-Body Quantum States10.1103/PhysRevX.11.0310412160-3308https://doaj.org/article/586e4bf99c494f258036105a9a9056862021-08-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.11.031041http://doi.org/10.1103/PhysRevX.11.031041https://doaj.org/toc/2160-3308We formulate a general theory of wave-particle duality for many-body quantum states, which quantifies how wavelike and particlelike properties balance each other. Much as in the well-understood single-particle case, which-way information—here, on the level of many-particle paths—lends particle character, while interference—here, due to coherent superpositions of many-particle amplitudes—indicates wavelike properties. We analyze how many-particle which-way information, continuously tunable by the level of distinguishability of fermionic or bosonic, identical and possibly interacting particles, constrains interference contributions to many-particle observables and thus controls the quantum-to-classical transition in many-particle quantum systems. The versatility of our theoretical framework is illustrated for Hong-Ou-Mandel-like and Bose-Hubbard-like exemplary settings.Christoph DittelGabriel DufourGregor WeihsAndreas BuchleitnerAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 11, Iss 3, p 031041 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Christoph Dittel Gabriel Dufour Gregor Weihs Andreas Buchleitner Wave-Particle Duality of Many-Body Quantum States
description	We formulate a general theory of wave-particle duality for many-body quantum states, which quantifies how wavelike and particlelike properties balance each other. Much as in the well-understood single-particle case, which-way information—here, on the level of many-particle paths—lends particle character, while interference—here, due to coherent superpositions of many-particle amplitudes—indicates wavelike properties. We analyze how many-particle which-way information, continuously tunable by the level of distinguishability of fermionic or bosonic, identical and possibly interacting particles, constrains interference contributions to many-particle observables and thus controls the quantum-to-classical transition in many-particle quantum systems. The versatility of our theoretical framework is illustrated for Hong-Ou-Mandel-like and Bose-Hubbard-like exemplary settings.
format	article
author	Christoph Dittel Gabriel Dufour Gregor Weihs Andreas Buchleitner
author_facet	Christoph Dittel Gabriel Dufour Gregor Weihs Andreas Buchleitner
author_sort	Christoph Dittel
title	Wave-Particle Duality of Many-Body Quantum States
title_short	Wave-Particle Duality of Many-Body Quantum States
title_full	Wave-Particle Duality of Many-Body Quantum States
title_fullStr	Wave-Particle Duality of Many-Body Quantum States
title_full_unstemmed	Wave-Particle Duality of Many-Body Quantum States
title_sort	wave-particle duality of many-body quantum states
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/586e4bf99c494f258036105a9a905686
work_keys_str_mv	AT christophdittel waveparticledualityofmanybodyquantumstates AT gabrieldufour waveparticledualityofmanybodyquantumstates AT gregorweihs waveparticledualityofmanybodyquantumstates AT andreasbuchleitner waveparticledualityofmanybodyquantumstates
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Wave-Particle Duality of Many-Body Quantum States

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