Vacuum induced Spin-1/2 Berry phase

Details Vacuum induced Spin-1/2 Berry phase Vacuum induced Spin-1/2 Berry phase

2002-02-22

arxiv.org/abs/quant-ph/0202128v2

Phys.Rev.Lett.89:220404,2002

Physics

Quantum Physics

4 pages, RevTeX4

Scientific paper

10.1103/PhysRevLett.89.220404

We calculate the Berry phase of a spin-1/2 particle in a magnetic field considering the quantum nature of the field. The phase reduces to the standard Berry phase in the semiclassical limit and eigenstate of the particle acquires a phase in the vacuum. We also show how to generate a vacuum induced Berry phase considering two quantized modes of the field which has a interesting physical interpretation.

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