Berry phase from a randomly fluctuating magnetic field | Zendy

R. Skomski | Zendy

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Berry phase from a randomly fluctuating magnetic field

Author(s) -

R. Skomski

Publication year - 2012

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.3670063

Subject(s) - condensed matter physics , geometric phase , magnetic field , phase (matter) , adiabatic process , berry , physics , berry connection and curvature , quantum , quantum mechanics , botany , biology

The quantum-mechanical Berry phase due to a randomly fluctuating magnetic field is calculated by exploiting an analogous random-walk problem in polymer physics. The phase depends on the time correlations of the magnetic field, despite the adiabatic nature of the Berry phase. A probability distribution for the phase is obtained, and how this phase could affect the magnetotransport in granular magnetic nanostructures is briefly discussed.

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