| A Random Number Generator Based on Quantum Entangled Photon Pairs |
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| 作者姓名： | 马海强 王素梅 张达 常群弢 季玲玲 侯岩雪 吴令安 |
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| 作者单位： | [1]LaboratoryofOpticalPhysics,InstituteofPhysics,ChineseAcademyofSciences,Begiing100080 [2]LaboratoryofAtomicandMolecularPhysics,CollegeofPhysicsandElectronics,ShandongNormalUniversity,Ji＇nan250014 |
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| 摘 要： | A new scheme for a random number generator based on quantum entangled photon pairs is demonstrated.Signal photons produced by optical parametric down-conversion are detected at two single-photon detectors after transmission or reflection at a 50/50% beamsplitter, to form a truly random binary sequence. Their arrival is signalled by their twin idler photons, so that a cw laser source may be used instead of attenuated laser pulses.Coincidence measurement is employed to obtain the bit sequences, which are shown to fully satisfy the standard tests for randomness.
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| 关 键 词： | 量子计算 量子传输 量子纠缠光子对 随机编码器 泊松分布 分束器 |
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