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|Title:||Kinematic approach to off-diagonal geometric phases of nondegenerate and degenerate mixed states||Authors:||Tong, D.M.
|Issue Date:||1-Mar-2005||Citation:||Tong, D.M., Sjöqvist, E., Filipp, S., Kwek, L.C., Oh, C.H. (2005-03-01). Kinematic approach to off-diagonal geometric phases of nondegenerate and degenerate mixed states. Physical Review A - Atomic, Molecular, and Optical Physics 71 (3) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.71.032106||Abstract:||Off-diagonal geometric phases have been developed in order to provide information of the geometry of paths that connect noninterfering quantal states. We propose a kinematic approach to off-diagonal geometric phases for pure and mixed states. We further extend the mixed-state concept proposed in [Phys. Rev. Lett. 90, 050403 (2003)] to degenerate density operators. The first- and second-order off-diagonal geometric phases are analyzed for unitarily evolving pairs of pseudopure states. ©2005 The American Physical Society.||Source Title:||Physical Review A - Atomic, Molecular, and Optical Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/97019||ISSN:||10502947||DOI:||10.1103/PhysRevA.71.032106|
|Appears in Collections:||Staff Publications|
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