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arXiv physics/9610020physics.opticsquant-ph
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三光子下转换中的量子干涉

Quantum Interference in Three Photon Down Conversion

Konrad Banaszek, Peter L. Knight

摘要:

我们研究了简并三光子下转换作为一种潜在的方案,用于产生具有明显相空间干涉特征的光的非经典态。表示这些状态的维格纳函数包含在不同的相空间分量之间表现出量子相干性的干涉图案,并且具有相当大的负性区域。我们开发了一个分析描述的干涉图案,这表明如何振荡的维格纳函数建立的叠加原理。我们分析了耗散和泵浦波动对干涉图样可见度的影响;结果表明,在存在适量噪声的情况下,可以观察到量子相干性的一些特征。

英文摘要:

We study degenerate three photon down conversion as a potential scheme for generating nonclassical states of light which exhibit clear signatures of phase space interference. The Wigner function representing these states contains an interference pattern manifesting quantum coherence between distinct phase space components, and has substantial areas of negativity. We develop an analytical description of the interference pattern, which demonstrates how the oscillations of the Wigner function are built up by the superposition principle. We analyze the impact of dissipation and pump fluctuations on the visibility of the interference pattern; the results suggest that some signatures of quantum coherence can be observed in the presence of moderate amount of noise.

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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