Spin bath interaction effects on the geometric phase

TitleSpin bath interaction effects on the geometric phase
Publication TypeJournal
AuthorsVillar, P
Year of Publication2009
PublicationPhysics Letters A
Volume373
Number2
Pagination206 - 209
ISSN Number0375-9601
Abstract

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.

URLhttp://www.sciencedirect.com/science/article/B6TVM-4V0TD0J-1/2/11dd07b4a22efc10267f2c180793e820
DOI10.1016/j.physleta.2008.11.038
Citation KeyVillar2009206
Type: 
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