Thermality versus Objectivity: Can They Peacefully Coexist?

Under the influence of external environments, quantum systems can undergo various different processes, including decoherence and equilibration. We observe that macroscopic objects are both objective and thermal, thus leading to the expectation that both objectivity and thermalisation can peacefully...

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Autores principales:	Thao P. Le, Andreas Winter, Gerardo Adesso
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Quantum Darwinism objectivity thermalisation open quantum systems Science Q Astrophysics QB460-466 Physics QC1-999
Acceso en línea:	https://doaj.org/article/f078727b05444adfb679ae782818e352
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id	oai:doaj.org-article:f078727b05444adfb679ae782818e352
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spelling	oai:doaj.org-article:f078727b05444adfb679ae782818e3522021-11-25T17:30:20ZThermality versus Objectivity: Can They Peacefully Coexist?10.3390/e231115061099-4300https://doaj.org/article/f078727b05444adfb679ae782818e3522021-11-01T00:00:00Zhttps://www.mdpi.com/1099-4300/23/11/1506https://doaj.org/toc/1099-4300Under the influence of external environments, quantum systems can undergo various different processes, including decoherence and equilibration. We observe that macroscopic objects are both objective and thermal, thus leading to the expectation that both objectivity and thermalisation can peacefully coexist on the quantum regime too. Crucially, however, objectivity relies on distributed classical information that could conflict with thermalisation. Here, we examine the overlap between thermal and objective states. We find that in general, one cannot exist when the other is present. However, there are certain regimes where thermality and objectivity are more likely to coexist: in the high temperature limit, at the non-degenerate low temperature limit, and when the environment is large. This is consistent with our experiences that everyday-sized objects can be both thermal and objective.Thao P. LeAndreas WinterGerardo AdessoMDPI AGarticleQuantum Darwinismobjectivitythermalisationopen quantum systemsScienceQAstrophysicsQB460-466PhysicsQC1-999ENEntropy, Vol 23, Iss 1506, p 1506 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Quantum Darwinism objectivity thermalisation open quantum systems Science Q Astrophysics QB460-466 Physics QC1-999
spellingShingle	Quantum Darwinism objectivity thermalisation open quantum systems Science Q Astrophysics QB460-466 Physics QC1-999 Thao P. Le Andreas Winter Gerardo Adesso Thermality versus Objectivity: Can They Peacefully Coexist?
description	Under the influence of external environments, quantum systems can undergo various different processes, including decoherence and equilibration. We observe that macroscopic objects are both objective and thermal, thus leading to the expectation that both objectivity and thermalisation can peacefully coexist on the quantum regime too. Crucially, however, objectivity relies on distributed classical information that could conflict with thermalisation. Here, we examine the overlap between thermal and objective states. We find that in general, one cannot exist when the other is present. However, there are certain regimes where thermality and objectivity are more likely to coexist: in the high temperature limit, at the non-degenerate low temperature limit, and when the environment is large. This is consistent with our experiences that everyday-sized objects can be both thermal and objective.
format	article
author	Thao P. Le Andreas Winter Gerardo Adesso
author_facet	Thao P. Le Andreas Winter Gerardo Adesso
author_sort	Thao P. Le
title	Thermality versus Objectivity: Can They Peacefully Coexist?
title_short	Thermality versus Objectivity: Can They Peacefully Coexist?
title_full	Thermality versus Objectivity: Can They Peacefully Coexist?
title_fullStr	Thermality versus Objectivity: Can They Peacefully Coexist?
title_full_unstemmed	Thermality versus Objectivity: Can They Peacefully Coexist?
title_sort	thermality versus objectivity: can they peacefully coexist?
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f078727b05444adfb679ae782818e352
work_keys_str_mv	AT thaople thermalityversusobjectivitycantheypeacefullycoexist AT andreaswinter thermalityversusobjectivitycantheypeacefullycoexist AT gerardoadesso thermalityversusobjectivitycantheypeacefullycoexist
_version_	1718412320808370176

Thermality versus Objectivity: Can They Peacefully Coexist?

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