Time evolution of the quantized field coupled to a thermal bath: A phase space approach

Mattos, E. P.; Vidiella-Barranco, A.

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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Time evolution of the quantized field coupled to a thermal bath: A phase space approach

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Author(s):	Mattos, E. P. ^[1] ; Vidiella-Barranco, A. ^[1] Total Authors: 2
Affiliation:	^[1] Univ Campinas UNICAMP, Gleb Wataghin Inst Phys, BR-13083859 Campinas, SP - Brazil Total Affiliations: 1
Document type:	Journal article
Source:	ANNALS OF PHYSICS; v. 422, NOV 2020.
Web of Science Citations:	0
Abstract
We present an alternative method for describing the evolution of a mode of the quantized electromagnetic field in contact with a finite temperature thermal bath. We employ the expansion of the field density operator in terms of coherent states and the related Glauber-Sudarshan P-function in phase space. The method allows us to obtain analytical expressions of the system's time-evolved P-function without needing to solve the corresponding master equation. (C) 2020 Elsevier Inc. All rights reserved. (AU)

FAPESP's process:	19/00291-1 - States of the quantized electromagnetic field with added photons under the action of the environment: attenuation and amplification
Grantee:	Eric Perides Mattos
Support Opportunities:	Scholarships in Brazil - Scientific Initiation

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