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Geometric phase distributions for open quantum systems

K. -P. Marzlin·S. Ghose·B. C. Sanders
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Abstract

In an open system, the geometric phase should be described by a distribution. We show that a geometric phase distribution for open system dynamics is in general ambiguous, but the imposition of reasonable physical constraints on the environment and its coupling with the system yields a unique geometric phase distribution that applies even for mixed states, non-unitary dynamics, and non-cyclic evolutions.

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K. -P. Marzlin, S. Ghose, B. C. Sanders. 2004-08-25. Geometric phase distributions for open quantum systems. https://doi.org/10.1103/physrevlett.93.260402

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