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arXiv 0710.3205quant-ph
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多模压缩态的SU(1,1)对称性

SU(1,1) symmetry of multimode squeezed states

Zahra Shaterzadeh-Yazdi, Peter S. Turner, Barry C. Sanders

摘要:

我们证明了一类采用线性光学加双模压缩的多模光学变换可以用SU(1,1)算符表示。这些操作与最先进的连续变量量子信息实验有关,包括量子态共享,量子隐形传态和多体纠缠态。使用这种SU(1,1)描述这些变换,我们得到了一个新的基础,这种变换在于一个有用的表示这个组,并位于经常使用的限制高斯状态之外。我们分析了这个基础,展示了它在一类变换中的应用,并讨论了它在更一般的量子光网络中的扩展。

英文摘要:

We show that a class of multimode optical transformations that employ linear optics plus two-mode squeezing can be expressed as SU(1,1) operators. These operations are relevant to state-of-the-art continuous variable quantum information experiments including quantum state sharing, quantum teleportation, and multipartite entangled states. Using this SU(1,1) description of these transformations, we obtain a new basis for such transformations that lies in a useful representation of this group and lies outside the often-used restriction to Gaussian states. We analyze this basis, show its application to a class of transformations, and discuss its extension to more general quantum optical networks.

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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