Possibility of producing the event-ready two-photon polarization entangled state with normal photon detectors

被引：0
|
作者：
Xiang-Bin, Wang [1 ]
机构：
[1] Imai Quantum Computation and Info., ERATO, Japan Sci. and Technol. Corporation, Daini Hongo White Bldg. 201, 5-28-3, Hongo, Bunkyo, Tokyo 113-0033, Japan
来源：
Physical Review A - Atomic, Molecular, and Optical Physics | 2003年 / 68卷 / 4 A期
关键词：
Electron energy levels - Light polarization - Matrix algebra - Optical beam splitters - Optical pumping - Optics - Photodetectors - Quantum theory - Vacuum;
D O I：
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学科分类号：
摘要：
The synchronization of two beams of single photon is a challenging task in practice. But it is not an unsolvable problem in principle. As it is calculated earlier, even imperfect normal photon detectors with an efficiency of 50% are used, the fidelity between the outcome state and the perfect EPR state is still quite high. This is a bit different from the third order SPDC scheme given by Sliwa and Banaszek where the result is seriously distorted by the low detection efficiency.
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页码：1 / 042304
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