Berry's phase and Aharonov-Anandan's pha
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Zhaoyan Wu; Jingxia Wang
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Article
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1996
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Elsevier Science
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English
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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 dr