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arXiv quant-ph/0308134quant-ph
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线性光学量子计算中的实验非线性符号位移

Experimental nonlinear sign shift for linear optics quantum computation

Kaoru Sanaka, Thomas Jennewein, Jian-Wei Pan, Kevin Resch, Anton Zeilinger

摘要:

我们实现了光子量子比特的非线性符号移位(NS)操作,该操作利用一个额外的单光子和测量值来移动被分束器反射的两个光子的相位。我们表明,条件相移是$(1.05\pm 0.06) π$在明确的协议与理论。我们的结果表明,通过使用辅助光子和条件探测,非线性光学效应可以实现只用线性光学元件。这个实验代表了可扩展量子计算的线性光学实现的重要一步。

英文摘要:

We have realized the nonlinear sign shift (NS) operation for photonic qubits.This operation shifts the phase of two photons reflected by a beam splitter using an extra single photon and measurement. We show that the conditional phase shift is $(1.05\pm 0.06) π$ in clear agreement with theory. Our results show that by using an ancilla photon and conditional detection, nonlinear optical effects can be implemented using only linear optical elements. This experiment represents an essential step for linear optical implementations of scalable quantum computation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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