Memory effects in the spin relaxation within and without rotating wave approximation

In the frame of the time-convolutionless generalized master equation approach, an analysis of a spin relaxation is made within and without the rotating wave approximation. The non-Markovian reduced dynamics is investigated, giving explicit expressions for the time-dependent involved coefficients, an...

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Autores principales: Blanga, L.D., Despósito, M.A.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03784371_v227_n3-4_p248_Blanga
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03784371_v227_n3-4_p248_Blanga
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spelling todo:paper_03784371_v227_n3-4_p248_Blanga2023-10-03T15:32:29Z Memory effects in the spin relaxation within and without rotating wave approximation Blanga, L.D. Despósito, M.A. In the frame of the time-convolutionless generalized master equation approach, an analysis of a spin relaxation is made within and without the rotating wave approximation. The non-Markovian reduced dynamics is investigated, giving explicit expressions for the time-dependent involved coefficients, and numerical results are presented for the Ohmic reservoir model. The comparisons between these results and those obtained with the Markovian approximation are developed, analyzing the positivity of the reduced dynamics in the short transient time. Fil:Blanga, L.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Despósito, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03784371_v227_n3-4_p248_Blanga
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description In the frame of the time-convolutionless generalized master equation approach, an analysis of a spin relaxation is made within and without the rotating wave approximation. The non-Markovian reduced dynamics is investigated, giving explicit expressions for the time-dependent involved coefficients, and numerical results are presented for the Ohmic reservoir model. The comparisons between these results and those obtained with the Markovian approximation are developed, analyzing the positivity of the reduced dynamics in the short transient time.
format JOUR
author Blanga, L.D.
Despósito, M.A.
spellingShingle Blanga, L.D.
Despósito, M.A.
Memory effects in the spin relaxation within and without rotating wave approximation
author_facet Blanga, L.D.
Despósito, M.A.
author_sort Blanga, L.D.
title Memory effects in the spin relaxation within and without rotating wave approximation
title_short Memory effects in the spin relaxation within and without rotating wave approximation
title_full Memory effects in the spin relaxation within and without rotating wave approximation
title_fullStr Memory effects in the spin relaxation within and without rotating wave approximation
title_full_unstemmed Memory effects in the spin relaxation within and without rotating wave approximation
title_sort memory effects in the spin relaxation within and without rotating wave approximation
url http://hdl.handle.net/20.500.12110/paper_03784371_v227_n3-4_p248_Blanga
work_keys_str_mv AT blangald memoryeffectsinthespinrelaxationwithinandwithoutrotatingwaveapproximation
AT despositoma memoryeffectsinthespinrelaxationwithinandwithoutrotatingwaveapproximation
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