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Experimental preparation of Werner state via spontaneous parametric down-conversion

Yong-Sheng Zhang·Yun-Feng Huang·Chuan-Feng Li·Guang-Can Guo
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Abstract

We present an experiment of preparing Werner state via spontaneous parametric down-conversion and controlled decoherence of photons in this paper. In this experiment two independent BBO (beta-barium borate) crystals are used to produce down-conversion light beams, which are mixed to prepare Werner state.

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Yong-Sheng Zhang, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo. 2002-10-10. Experimental preparation of Werner state via spontaneous parametric down-conversion. https://doi.org/10.1103/physreva.66.062315

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