Berry's phase and Aharonov-Anandan's phase

Zhaoyan Wu, and Jingxia Wang,

Physica A: Statistical Mechanics and its Applications, 1996, vol. 232, issue 1, 201-206

Abstract: The Aharonov-Anandan geometric phase is generalized to non-unitary evolution, and is shown to be always real. By using a counter-example, which is exactly solvable, it is shown that Berry's geometric phase is not always the adiabatic limit of Aharonov-Anandan's geometric phase for a non-Hermitian driving Hamiltonion. The reason is then given.

Date: 1996
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:232:y:1996:i:1:p:201-206

DOI: 10.1016/0378-4371(96)00092-1

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