Effective dynamics for two-atom entanglement and quantum information processing by coupled cavity QED systems.

We propose a scheme for deterministic generation of entanglement embodied by two $\Lambda $-type atoms distributed in two coupled cavities. We study such a system in the dispersive atom-field interactions, where the dynamics of the system operates through the virtual population of both the atomic excited states and the photonic states in the cavities (plus the fiber). We verify the validity of the dynamics, and moreover, study the influences of the decoherence due to the spontaneous emission and photon leakage. We also apply the dynamics for realizing quantum state transfer and quantum phase gates. [ABSTRACT FROM AUTHOR]