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Phys. Rev. A 78, 043618 (2008) [6 pages]

Mean-field dynamics of a Bose Josephson junction in an optical cavity

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J. M. Zhang, W. M. Liu, and D. L. Zhou
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China

Received 13 March 2008; revised 16 June 2008; published 30 October 2008

We study the mean-field dynamics of a Bose Josephson junction which is dispersively coupled to a single mode of a high-finesse optical cavity. An effective classical Hamiltonian for the Bose Josephson junction is derived, and its dynamics is studied from the perspective of a phase portrait. It is shown that the strong condensate-field interplay does alter the dynamics of the Bose Josephson junction drastically. The possibility of coherent manipulating and in situ observation of the dynamics of the Bose Josephson junction is discussed.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.78.043618
DOI:
10.1103/PhysRevA.78.043618
PACS:
03.75.Lm, 37.10.Vz, 42.50.Pq, 45.20.Jj