Spin bath interaction effects on the geometric phase

We calculate the geometric phase of a spin-1/2 particle coupled to an external environment comprising N spin-1/2 particle in the framework of open quantum systems. We analyze the decoherence factor and the deviation of the geometric phase under a nonunitary evolution from the one gained under an uni...

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Autor principal: Villar, P.I.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03759601_v373_n2_p206_Villar
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03759601_v373_n2_p206_Villar
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spelling todo:paper_03759601_v373_n2_p206_Villar2023-10-03T15:31:10Z Spin bath interaction effects on the geometric phase Villar, P.I. We calculate the geometric phase of a spin-1/2 particle coupled to an external environment comprising N spin-1/2 particle in the framework of open quantum systems. We analyze the decoherence factor and the deviation of the geometric phase under a nonunitary evolution from the one gained under an unitary one. We show the dependence upon the system's and bath's parameter and analyze the range of validity of the perturbative approximation. Finally, we discuss the implications of our results. © 2008 Elsevier B.V. All rights reserved. Fil:Villar, P.I. 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_03759601_v373_n2_p206_Villar
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We calculate the geometric phase of a spin-1/2 particle coupled to an external environment comprising N spin-1/2 particle in the framework of open quantum systems. We analyze the decoherence factor and the deviation of the geometric phase under a nonunitary evolution from the one gained under an unitary one. We show the dependence upon the system's and bath's parameter and analyze the range of validity of the perturbative approximation. Finally, we discuss the implications of our results. © 2008 Elsevier B.V. All rights reserved.
format JOUR
author Villar, P.I.
spellingShingle Villar, P.I.
Spin bath interaction effects on the geometric phase
author_facet Villar, P.I.
author_sort Villar, P.I.
title Spin bath interaction effects on the geometric phase
title_short Spin bath interaction effects on the geometric phase
title_full Spin bath interaction effects on the geometric phase
title_fullStr Spin bath interaction effects on the geometric phase
title_full_unstemmed Spin bath interaction effects on the geometric phase
title_sort spin bath interaction effects on the geometric phase
url http://hdl.handle.net/20.500.12110/paper_03759601_v373_n2_p206_Villar
work_keys_str_mv AT villarpi spinbathinteractioneffectsonthegeometricphase
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