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Title: | Non-Markovian dynamics of fully coupled fermionic and bosonic oscillators |
Authors: | Sargsyan, Vazgen Valerikovich Lacroix, D. Adamyan, Gurgen Grigorjevich Antonenko, Nikolay Viktorovich |
Keywords: | фермионная динамика; окружающая среда; тепловое равновесие |
Issue Date: | 2017 |
Publisher: | Томский политехнический университет |
Citation: | Non-Markovian dynamics of fully coupled fermionic and bosonic oscillators / V. V. Sargsyan [et al.] // Physical Review A. — 2017. — Vol. 95, iss. 3. — [032119, 12 p.]. |
Abstract: | 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. |
URI: | http://earchive.tpu.ru/handle/11683/38255 |
Appears in Collections: | Репринты научных публикаций |
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reprint-nw-19633.pdf | 713,69 kB | Adobe PDF | View/Open |
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