Remote Generation of Entanglement for Individual Atoms via Optical Fibres
GUO Yan-Qing1, ZHONG Hai-Yang1, ZHANG Ying-Hui1, SONG He-Shan2
1Department of Physics, Dalian Maritime University, Dalian 1160262School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116023
Remote Generation of Entanglement for Individual Atoms via Optical Fibres
GUO Yan-Qing1, ZHONG Hai-Yang1, ZHANG Ying-Hui1, SONG He-Shan2
1Department of Physics, Dalian Maritime University, Dalian 1160262School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116023
摘要The generation of atomic entanglement is discussed in a system that atoms are trapped in separate cavities which are connected via optical fibres. Two distant atoms can be projected to Bell-state by synchronized turning off of the local laser fields and then performing a single quantum measurement by a distant controller. The distinct advantage of this scheme is that it works in a regime where Δ≈>>g, which makes the scheme insensitive to cavity strong leakage. Moreover, the fidelity is not affected by atomic spontaneous emission.
Abstract：The generation of atomic entanglement is discussed in a system that atoms are trapped in separate cavities which are connected via optical fibres. Two distant atoms can be projected to Bell-state by synchronized turning off of the local laser fields and then performing a single quantum measurement by a distant controller. The distinct advantage of this scheme is that it works in a regime where Δ≈>>g, which makes the scheme insensitive to cavity strong leakage. Moreover, the fidelity is not affected by atomic spontaneous emission.
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2008, Vol. 25 
