Kinematic approach to the mixed state geometric phase in nonunitary evolution

C.H. Oh; D.M. Tong; E. Sj\"oqvist; L.C. Kwek

Kinematic approach to the mixed state geometric phase in nonunitary evolution

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arxiv quant-ph/0405092 v2 pith:KB2ILIIY submitted 2004-05-17 quant-ph

D.M. Tong , E. Sjöqvist , L.C. Kwek , C.H. Oh This is my paper

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keywords evolutionphaseapproachgeometrickinematicmixednonunitaryexperimentally

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A kinematic approach to the geometric phase for mixed quantal states in nonunitary evolution is proposed. This phase is manifestly gauge invariant and can be experimentally tested in interferometry. It leads to well-known results when the evolution is unitary.

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