Physics – Quantum Physics
Scientific paper
2004-11-26
Phys. Rev. A 70, 052106 (2004)
Physics
Quantum Physics
4 pages, 1 figure
Scientific paper
10.1103/PhysRevA.70.052106
The effect of inter-subsystem couplings on the Berry phase of a composite system as well as that of its subsystem is investigated in this paper. We analyze two coupled spin-$\frac 1 2 $ particles 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.
Cui H. T.
Wang Chang-Liang
Yi Xiaoke
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