Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/17301
Title: 
Kinematic approach to off-diagonal geometric phases of nondegenerate and degenerate mixed states
Authors: 
Issue Date: 
2005
Citation: 
Tong, D. M., Sjöqvist, E., Filipp, S., Kwek, L. C., & Oh, C. H. (2005). Kinematic approach to off-diagonal geometric phases of nondegenerate and degenerate mixed states. Physical Review A, 71(3), 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.
URI: 
ISSN: 
1094-1622 (online)
1050-2947 (print)
Other Identifiers: 
10.1103/PhysRevA.71.032106
Website: 
Appears in Collections:Journal Articles

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