Abstract
We report the generation and characterization of quantum-correlated twin beams and their application to a quantum channel. Compared with our previous results, the characterization of twin beams and the quantum channel have been studied with 7.0-dB intensity difference squeezing. The measured inference variance of twin beams is decreased to 0.40 ± 0.02. For the quantum channel, the bit error rate will be 0.035 by using 7.0-dB intensity difference squeezing compared with our previous result of 0.067 by using 4.9-dB intensity difference squeezing.
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From Optika i Spektroskopiya, Vol. 99, No. 2, 2005, pp. 196–199.
Original English Text Copyright © 2005 by Zhang, Hayasaka, Kasai.
The text was submitted by the authors in English.
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Zhang, Y., Hayasaka, K. & Kasai, K. Experimental characterization of quantum-correlated twin beams and a quantum channel with twin beams. Opt. Spectrosc. 99, 181–184 (2005). https://doi.org/10.1134/1.2034601
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DOI: https://doi.org/10.1134/1.2034601