Comment on “Equilibration Time Scales of Physically Relevant Observables”

Putting a generally valid upper bound on equilibration times of physically relevant observables is a much pursued endeavor. Recently, such a bound has been suggested by Garcia-Pintos et al. While the mathematical correctness of the bound as such is undisputed, its concrete calculation requires the k...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Robin Heveling, Lars Knipschild, Jochen Gemmer
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2020
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/0a8a80dbf1644e4ea57c7929563b651d
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:0a8a80dbf1644e4ea57c7929563b651d
record_format	dspace
spelling	oai:doaj.org-article:0a8a80dbf1644e4ea57c7929563b651d2021-12-02T11:57:16ZComment on “Equilibration Time Scales of Physically Relevant Observables”10.1103/PhysRevX.10.0280012160-3308https://doaj.org/article/0a8a80dbf1644e4ea57c7929563b651d2020-06-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.10.028001http://doi.org/10.1103/PhysRevX.10.028001https://doaj.org/toc/2160-3308Putting a generally valid upper bound on equilibration times of physically relevant observables is a much pursued endeavor. Recently, such a bound has been suggested by Garcia-Pintos et al. While the mathematical correctness of the bound as such is undisputed, its concrete calculation requires the knowledge of certain quantities, which Garcia-Pintos et al. assess by means of assumptions. We show that, e.g., in standard cases of slow, exponential equilibration, (at least) one of these assumptions is not valid. This demonstration highlights the difficulty to judge the validity of the above assumptions without further information. Such information is, in general, very hard to obtain.Robin HevelingLars KnipschildJochen GemmerAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 10, Iss 2, p 028001 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Robin Heveling Lars Knipschild Jochen Gemmer Comment on “Equilibration Time Scales of Physically Relevant Observables”
description	Putting a generally valid upper bound on equilibration times of physically relevant observables is a much pursued endeavor. Recently, such a bound has been suggested by Garcia-Pintos et al. While the mathematical correctness of the bound as such is undisputed, its concrete calculation requires the knowledge of certain quantities, which Garcia-Pintos et al. assess by means of assumptions. We show that, e.g., in standard cases of slow, exponential equilibration, (at least) one of these assumptions is not valid. This demonstration highlights the difficulty to judge the validity of the above assumptions without further information. Such information is, in general, very hard to obtain.
format	article
author	Robin Heveling Lars Knipschild Jochen Gemmer
author_facet	Robin Heveling Lars Knipschild Jochen Gemmer
author_sort	Robin Heveling
title	Comment on “Equilibration Time Scales of Physically Relevant Observables”
title_short	Comment on “Equilibration Time Scales of Physically Relevant Observables”
title_full	Comment on “Equilibration Time Scales of Physically Relevant Observables”
title_fullStr	Comment on “Equilibration Time Scales of Physically Relevant Observables”
title_full_unstemmed	Comment on “Equilibration Time Scales of Physically Relevant Observables”
title_sort	comment on “equilibration time scales of physically relevant observables”
publisher	American Physical Society
publishDate	2020
url	https://doaj.org/article/0a8a80dbf1644e4ea57c7929563b651d
work_keys_str_mv	AT robinheveling commentonequilibrationtimescalesofphysicallyrelevantobservables AT larsknipschild commentonequilibrationtimescalesofphysicallyrelevantobservables AT jochengemmer commentonequilibrationtimescalesofphysicallyrelevantobservables
_version_	1718394789163958272

Comment on “Equilibration Time Scales of Physically Relevant Observables”

Ejemplares similares