Non-Markovian dynamics of fully coupled fermionic and bosonic oscillators; Physical Review A; Vol. 95, iss. 3

Non-Markovian dynamics of fully coupled fermionic and bosonic oscillators; Physical Review A; Vol. 95, iss. 3

Dettagli Bibliografici
Parent link:Physical Review A: Atomic, Molecular, and Optical Physics.— , 1970-
Vol. 95, iss. 3.— 2017.— [032119, 12 p.]
Ente Autore: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра высшей математики и математической физики (ВММФ)
Altri autori: Sargsyan V. V. Vazgen Valerikovich, Lacroix D., Adamyan G. G. Gurgen Grigorjevich, Antonenko N. V. Nikolay Viktorovich
Riassunto:Title screen
The non-Markovian Langevin approach is applied to study the dynamics of fermionic (bosonic) oscillator linearly coupled to a fermionic (bosonic) environment. The analytical expressions for occupation numbers in two different types of couplings (rotating-wave approximation and fully coupled) are compared and discussed. The weak-coupling and high- and low-temperature limits are considered as well. The conditions under which the environment imposes its thermal equilibrium on the collective subsystem are discussed. The sameness of the results, obtained with both the Langevin approach and the discretized environment method are shown. Short- and long-time nonequilibrium dynamics of fermionic and bosonic open quantum systems are analyzed both analytically and numerically.
Lingua:inglese
Pubblicazione: 2017
Soggetti:
электронный ресурс
труды учёных ТПУ
фермионная динамика
окружающая среда
тепловое равновесие
Accesso online:https://doi.org/10.1103/PhysRevA.95.032119
http://earchive.tpu.ru/handle/11683/38255
Natura: Elettronico Capitolo di libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=654113

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