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Communications in Theoretical Physics

Dynamic Analysis for Bose–Einstein Condensation in Quantum Cavity

Zhang Li, Wang Cheng, Yanmin Li, Wang Jin-Fang

Published May 1, 2005• 1 citation
Publisher

Abstract

For the two-level atoms system interacting with single-mode active field in a quantum cavity, the dynamics of the Bose–Einstein Condensation (BEC) is analyzed using an ordinary method suggested by authors to solve the system of Schrodinger representation in the Heisenberg representation. The wave function of the atoms is given. The stability factor determining the BEC and the selection rules of the quantum transition are solved.

DOI
10.1088/0253-6102/43/5/028

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For the two-level atoms system interacting with single-mode active field in a quantum cavity, the dynamics of the Bose–Einstein Condensation (BEC) is analyzed using an ordinary method suggested by authors to solve the system of Schrodinger representation in the Heisenberg representation. The wave function of the atoms is given. The stability factor determining the BEC and the selection rules of the quantum transition are solved.
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A Bose–Einstein condensate is dispersively coupled to a single mode of an ultra-high finesse optical cavity. The system is governed by strong interactions between the atomic motion and the light field even at the level of single quanta. While coherently pumping the cavity mode the condensate is subject to the cavity optical lattice potential whose depth depends nonlinearly on the atomic density distribution. We observe optical bistability already below the single photon level and strong back-action dynamics which tunes the coupled system periodically out of resonance.