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Quantum cloning in coupled states of optical field and atomic ensemble by quasi-condensation of polaritons

By A. P. Alodjants, S. M. Arakelian, S. N. Bagayev, I. A. Chekhonin and V. S. Egorov


We consider a new approach for storing quantum information by macroscopic atomic excitations of two level atomic system. We offer the original scheme of quantum cloning of optical field into the cavity polaritons containing the phase insensitive parametrical amplifier and atomic cell placed in the cavity. The high temperature quasi-condensation (and/or condensation) phenomenon for polaritons arising in the cavity under the certain conditions is proposed for the first time.Comment: 11 pages, 1 postscript figure, uses

Topics: Quantum Physics
Year: 2006
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