Conditional transfer of quantum correlation in the intensity of twin beams

Yun Zhang, Kazuhiro Hayasaka, and Katsuyuki Kasai
Phys. Rev. A 71, 062341 – Published 30 June 2005

Abstract

A conditional protocol of transferring quantum correlations in a continuous variable regime was experimentally demonstrated. The quantum correlation in two pairs of twin beams, each characterized by intensity-difference squeezing of 7.0±0.3dB, was transferred to two initially independent idler beams. The quantum-correlation transfer resulted in intensity-difference squeezing of 4.0±0.2dB between two idler beams. The dependence of the preparation probability and transfer fidelity on the selection bandwidth was also studied.

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  • Received 22 October 2004

DOI:https://doi.org/10.1103/PhysRevA.71.062341

©2005 American Physical Society

Authors & Affiliations

Yun Zhang, Kazuhiro Hayasaka, and Katsuyuki Kasai

  • Kansai Advanced Research Center, National Institute of Information and Communications Technology, 588-2 Iwaoka, Nishi-ku, Kobe 651-2492, Japan

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Issue

Vol. 71, Iss. 6 — June 2005

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