Geometric phases for mixed states in interferometry.

We provide a physical prescription based on interferometry for introducing the total phase of a mixed state undergoing unitary evolution, which has been an elusive concept in the past. We define the parallel transport condition that provides a connection form for obtaining the geometric phase for mi...

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Bibliographic Details
Main Authors: Sjöqvist, E, Pati, A, Ekert, A, Anandan, J, Ericsson, M, Oi, D, Vedral, V
Format: Journal article
Language:English
Published: American Inst of Physics 2000