Generation of entanglement between two spatially separated atoms via dispersive atom–field interaction
Xin‐You Lü, Liu-Gang Si, Meng Wang, Suzhen Zhang, Xiaoxue Yang · Journal of Physics B Atomic Molecular and Optical Physics · 2008
Based on the dispersive atom–field interaction, a scheme is proposed for deterministically generating entanglement between two Λ-type atoms, which are trapped individually in two spatially separated cavities coupled by an optical fibre. In the present scheme, it is found that the atomic spontaneous decay and photon leakage out of the fibre can be efficiently suppressed via choosing appropriately the frequency detuning of atom–field and the coupling intensity of cavity–fibre, respectively. The influence of photon leakage out of the cavities is also discussed, and the strictly numerical simulation shows that our proposal is good enough to demonstrate the generation of entanglement between two distant atoms with high fidelity.