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Proposed realization of the Dicke-model quantum phase transition in an optical cavity QED system

Dimer, F. and Estienne, B. and Parkins, A. S. and Carmichael, H. J. (2007) Proposed realization of the Dicke-model quantum phase transition in an optical cavity QED system. Physical Review A, 75 (1). Art. No. 013804. ISSN 1050-2947. doi:10.1103/PhysRevA.75.013804.

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The Dicke model describing an ensemble of two-state atoms interacting with a single quantized mode of the electromagnetic field (with omission of the Â^2 term) exhibits a zero-temperature phase transition at a critical value of the dipole coupling strength. We propose a scheme based on multilevel atoms and cavity-mediated Raman transitions to realize an effective Dicke model operating in the phase transition regime. Optical light from the cavity carries signatures of the critical behavior, which is analyzed for the thermodynamic limit where the number of atoms is very large.

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Additional Information:©2007 The American Physical Society. (Received 18 July 2006; published 8 January 2007) This work was supported by the Marsden Fund of the Royal Society of New Zealand. A.S.P. gratefully acknowledges support from the Institute for Quantum Information at the California Institute of Technology and thanks the Quantum Optics Group of H.J. Kimble for its hospitality.
Subject Keywords:quantum electrodynamics; quantum optics; phase transformations
Issue or Number:1
Record Number:CaltechAUTHORS:DIMpra07
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:7173
Deposited By: Archive Administrator
Deposited On:13 Jan 2007
Last Modified:08 Nov 2021 20:40

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