Phys. Rev. A 66, 062315 (2002) [4 pages]

Experimental preparation of the Werner state via spontaneous parametric down-conversion

Abstract

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Yong-Sheng Zhang^*, Yun-Feng Huang, Chuan-Feng Li, and Guang-Can Guo^†
Laboratory of Quantum Information, University of Science and Technology of China, CAS, Hefei 230026, People’s Republic of China

Received 24 June 2002; published 26 December 2002

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

URL:

http://link.aps.org/doi/10.1103/PhysRevA.66.062315

DOI:

10.1103/PhysRevA.66.062315

PACS:

03.67.-a, 03.65.Ud, 42.50.-p

^*Electronic address: yshzhang@ustc.edu.cn

^†Electronic address: gcguo@ustc.edu.cn

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Phys. Rev. A 66, 062315 (2002) [4 pages]

Experimental preparation of the Werner state via spontaneous parametric down-conversion