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arXiv quant-ph/0608230quant-ph
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用相干光子减法增加高斯态间的纠缠

Increasing entanglement between Gaussian states by coherent photon subtraction

Alexei Ourjoumtsev, Aurelien Dantan, Rosa Tualle-Brouri, Philippe Grangier

摘要:

实验证明了非高斯操作可以增加高斯纠缠态之间的纠缠。由非简并参量放大器产生的高斯正交纠缠光脉冲中的单光子相干相减产生了具有负维格纳函数和复杂结构的离域态,在负性方面比初始态更纠缠。实验结果与理论预测吻合得很好。

英文摘要:

We experimentally demonstrate that the entanglement between Gaussian entangled states can be increased by non-Gaussian operations. Coherent subtraction of single photons from Gaussian quadrature-entangled light pulses, created by a non-degenerate parametric amplifier, produces delocalized states with negative Wigner functions and complex structures, more entangled than the initial states in terms of negativity. The experimental results are in very good agreement with the theoretical predictions.

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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