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arXiv quant-ph/0304111quant-ph
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连续变量区域中量子态的条件制备:从双光束中产生亚泊松态

Conditional preparation of a quantum state in the continuous variable regime: generation of a sub-Poissonian state from twin beams

Julien Laurat, Thomas Coudreau, Nicolas Treps, Agnes Maitre, Claude Fabre

摘要:

我们报告的第一个实验演示的非经典光态的连续变量制度的条件准备。从产生阈值以上量子强度相关信号和闲频“孪生光束”的非简并OPO出发,仅当闲频落在比其标准偏差窄的值的带内时,我们才保持信号强度的记录值。通过这种非常简单的技术,我们产生一个亚泊松态4.4dB以下的散粒噪声从双光束表现出7.5dB的噪声减少的强度差。

英文摘要:

We report the first experimental demonstration of conditional preparation of a non classical state of light in the continuous variable regime. Starting from a non degenerate OPO which generates above threshold quantum intensity correlated signal and idler "twin beams", we keep the recorded values of the signal intensity only when the idler falls inside a band of values narrower than its standard deviation. By this very simple technique, we generate a sub-Poissonian state 4.4dB below shot noise from twin beams exhibiting 7.5dB of noise reduction in the intensity difference.

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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