A conditional protocol of transferring quantum-correlation in continuous variable regime was experimentally demonstrated. The quantum-correlation in two pairs of twin beams, each characterized by intensity-difference squeezing of 7.0 dB, was transferred to two initially independent idler beams. The quantum-correlation transfer resulted in intensity-difference squeezing of 4.0 dB between two idler beams. The dependence of preparation probability and transfer fidellity on the selection bandwidth was also studied.
@article{arxiv.quant-ph/0504032,
title = {Conditional transfer of quantum correlation in the intensity of twin beams},
author = {Yun Zhang and Kazuhiro Hayasaka and Katsuyuki Kasai},
journal= {arXiv preprint arXiv:quant-ph/0504032},
year = {2009}
}