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清华大学:超构表面偏振纠缠量子光源
偏振纠缠光源作为现代量子技术的关键组成部分,在量子密钥分发、量子计算、量子成像和量子传感等领域具有广泛应用。其中,基于非线性晶体自发参量下转换(Spontaneous parametric down-conversion, SPDC)过程产生偏振纠缠光子对的方法,因其较高的转换效率和无需 ...
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