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arXiv · 0708.0447

Scalable scheme for entangling multiple ququarts using linear optical elements

So-Young Baek·Yoon-Ho Kim
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Abstract

We report a scalable linear optical scheme for generating entangled states of multiple ququarts in which the individual single-ququart state is prepared with the biphoton polarization state of frequency-nondegenerate spontaneous parametric down-conversion. The output state is calculated with the full consideration of the higher order effect (double-pair events) of spontaneous parametric down-conversion. Scalability to multiple-ququart entanglement is demonstrated with examples: linear optical entanglement of three and four individual biphoton ququarts.

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So-Young Baek, Yoon-Ho Kim. 2007-08-03. Scalable scheme for entangling multiple ququarts using linear optical elements. https://doi.org/10.1016/j.physleta.2007.05.033

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