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arXiv · 1206.2736

Generating arbitrary photon-number entangled states for continuous-variable quantum informatics

Su-Yong Lee·Jiyong Park·Hai-Woong Lee·Hyunchul Nha
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Abstract

We propose two experimental schemes that can produce an arbitrary photon-number entangled state (PNES) in a finite dimension. This class of entangled states naturally includes non-Gaussian continuous-variable (CV) states that may provide some practical advantages over the Gaussian counterparts (two-mode squeezed states). We particularly compare the entanglement characteristics of the Gaussian and the non-Gaussian states in view of the degree of entanglement and the Einstein-Podolsky-Rosen correlation, and further discuss their applications to the CV teleportation and the nonlocality test. The experimental imperfection due to the on-off photodetectors with nonideal efficiency is also considered in our analysis to show the feasibility of our schemes within existing technologies.

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Su-Yong Lee, Jiyong Park, Hai-Woong Lee, Hyunchul Nha. 2012-06-13. Generating arbitrary photon-number entangled states for continuous-variable quantum informatics. https://doi.org/10.1364/oe.20.014221

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