Phys. Rev. A 67, 063804 (2003) [4 pages]Berry’s phase in cavity QED: Proposal for observing an effect of field quantizationReceived 7 May 2002; published 16 June 2003 We propose a feasible experiment to investigate quantum effects in geometric phases, arising when a classical source drives not a single quantum system, but two interacting ones. In particular, we show how to observe a signature of the quantization of the electromagnetic field through a vacuum effect in Berry’s phase. To do so, we describe the interaction of an atom and a quantized cavity mode altogether driven by an external quasiclassical field. We also analyze the semiclassical limit recovering the usual Berry’s phase results. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.67.063804
DOI:
10.1103/PhysRevA.67.063804
PACS:
42.50.Ct, 03.65.Vf
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