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arXiv:quant-ph/0411186 · Physical Review A

Berry’s phase with quantized field driving: Effects of intersubsystem coupling

L. C. Wang, H. T. Cui, X. X. Yi

Published Nov 12, 2004• 20 citations
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Abstract

The effect of intersubsystem coupling on the Berry phase of a composite system as well as that of its subsystem is investigated. We analyze two coupled spin-$\frac{1}{2}$ systems with one driven by a quantized field as an example. The pure-state geometric phase of the composite system as well as the mixed-state geometric phase for the subsystem is calculated and discussed.

DOI
10.1103/physreva.70.052106

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