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arXiv 1708.08412quant-phmath-phmath.MPphysics.optics
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光的多模单光子加、减态的统计特征

Statistical signatures of multimode single-photon added and subtracted states of light

Mattia Walschaers, Claude Fabre, Valentina Parigi, Nicolas Treps

摘要:

从光的高斯态中增加或减少光子是一种通用的和实验上可行的程序,以创建非高斯态。在多模设置中,当光子以模式可调的方式增加或减少时,这些状态表现出广泛的现象。在这方面的贡献,我们推导出截断的相关性,这是多模概括的累积量,在不同的模式,这些国家的统计签名之间的求积。这些相关性,然后用于获得完整的多模维格纳函数,其性质随后进行了研究。特别是,我们调查的减法或加法过程中的杂质的效果,并评估其对维格纳函数的负性的影响。最后,我们详细阐述了通过从压缩真空中减去或增加光子来产生固有纠缠。

英文摘要:

The addition or subtraction of a photon from a Gaussian state of light is a versatile and experimentally feasible procedure to create non-Gaussian states. In multimode setups, these states manifest a wide range of phenomena when the photon is added or subtracted in a mode-tunable way. In this contribution, we derive the truncated correlations, which are multimode generalisations of cumulants, between quadratures in different modes as statistical signatures of these states. These correlations are then used to obtain the full multimode Wigner function, the properties of which are subsequently studied. In particular we investigate the effect of impurity in the subtraction or addition process, and evaluate its impact on the negativity of the Wigner function. Finally, we elaborate on the generation of inherent entanglement through subtraction or addition of a photon from a pure squeezed vacuum.

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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