Vacuum-induced Berry phases in single-mode Jaynes-Cummings models

Yu Liu, L. F. Wei, W. Z. Jia, and J. Q. Liang
Phys. Rev. A 82, 045801 – Published 5 October 2010

Abstract

Motivated by work [Phys. Rev. Lett. 89, 220404 (2002)] for detecting the vacuum-induced Berry phases with two-mode Jaynes-Cummings models (JCMs), we show here that, for a parameter-dependent single-mode JCM, certain atom-field states also acquired photon-number-dependent Berry phases after the parameter slowly changed and eventually returned to its initial value. This geometric effect related to the field quantization still exists, even if the field is kept in its vacuum state. Specifically, a feasible Ramsey interference experiment with a cavity quantum electrodynamics system is designed to detect the vacuum-induced Berry phase.

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  • Received 20 June 2010

DOI:https://doi.org/10.1103/PhysRevA.82.045801

©2010 American Physical Society

Authors & Affiliations

Yu Liu1, L. F. Wei1,*, W. Z. Jia1, and J. Q. Liang2

  • 1Quantum Optoelectronics Laboratory, School of Physics and Technology, Southwest Jiaotong University, Chengdu 610031, China
  • 2Institute of Theoretical Physics and Department of Physics, Shanxi University, Taiyuan 030006, China

  • *weilianfu@gmail.com

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Vol. 82, Iss. 4 — October 2010

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