期刊
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
卷 30, 期 2, 页码 362-365出版社
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.30.000362
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资金
- NSF of China [11104085, 10974059, 11125417]
- Major Research Plan of the National Natural Science Foundation of China [91121023]
- NBRPC [2011CBA00302]
- SKPBR of China [2011CB922104]
- PCSIRT
We propose a scheme to efficiently generate time-frequency and polarization-entangled photon pairs with cold atomic ensembles via spontaneous four-wave mixing through combining the photon pairs from two symmetrical spatial modes by polarization beam splitters. With a two-dimensional magneto-optical trap, polarization-entangled photon pairs with controllable temporal length (>100 ns) can be generated at the rate of about 10(5) per second after taking into account all losses. Therefore, it is a feasible photon source for scalable linear optical quantum computation and long-distance quantum communication. (c) 2013 Optical Society of America
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