Modern Physics Letters B

LONG-LIVED ENTANGLEMENT OF THREE-ATOM IN AN OPTICAL CAVITY WITH PHASE DECOHERENCE

Jian-Song Zhang, Aixi Chen

Published Apr 9, 2010• 0 citations

Abstract

We investigate the entanglement dynamics in a quantum system consisting of three two-level atoms resonantly coupled to a single mode cavity in the presence of phase decoherence. With the help of the dynamical algebraic method, we obtain an analytical solution of the present system. The influence of phase decoherence on the entanglement of the system is studied. We find that the entanglement between the cavity field and any atom will be destroyed completely by phase decoherence as the system evolves. However, there is long-lived entanglement (or stationary state entanglement) of arbitrary two atoms, that is, the entanglement of atoms is more robust against phase decoherence than that of the atom-field system.

DOI: 10.1142/s0217984910022937

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