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首页> 外文期刊>Journal of the Optical Society of America, B. Optical Physics >Scheme for implementing linear optical quantum iSWAP gate with conventional photon detectors
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Scheme for implementing linear optical quantum iSWAP gate with conventional photon detectors

机译:用常规光子探测器实现线性光学量子iSWAP门的方案

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摘要

A simple scheme is proposed to implement a two-qubit linear optical quantum iSWAP gate that is a universal gate in quantum computation and quantum information processing. By the interference effect of the polarized photons, a quantum iSWAP gate can be achieved with a low success probability (4 /32, with being the quantum efficiency of photon detectors). The scheme is based only on simple linear optical elements, a pair of twophoton polarization entangled states, and conventional photon detectors that only distinguish the vacuum and nonvacuum Fock number states, which greatly decreases the experimental difficulty of implementing linear optical quantum computation.
机译:提出了一种简单的方案来实现两量子位线性光学量子iSWAP门,该门是量子计算和量子信息处理中的通用门。通过偏振光子的干扰效应,可以以较低的成功概率(4/32,即光子检测器的量子效率)实现量子iSWAP门。该方案仅基于简单的线性光学元件,一对双光子偏振纠缠态以及仅区分真空和非真空福克数态的常规光子检测器,大大降低了实现线性光学量子计算的实验难度。

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