Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.71.032106
Title: Kinematic approach to off-diagonal geometric phases of nondegenerate and degenerate mixed states
Authors: Tong, D.M. 
Sjöqvist, E.
Filipp, S.
Kwek, L.C. 
Oh, C.H. 
Issue Date: 1-Mar-2005
Source: 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
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