摘要We present a scheme for entanglement concentration of an unknown atomic non-maximally entangled GHZ state via cavity decay. In the scheme, the atom trapped in a cavity is manipulated by laser field, so the maximally entangled GHZ state can be obtained by performing certain operation, which can be realized by illuminating the atom in a cavity. Our method is robust against spontaneous atomic decay.
Abstract：We present a scheme for entanglement concentration of an unknown atomic non-maximally entangled GHZ state via cavity decay. In the scheme, the atom trapped in a cavity is manipulated by laser field, so the maximally entangled GHZ state can be obtained by performing certain operation, which can be realized by illuminating the atom in a cavity. Our method is robust against spontaneous atomic decay.
ZHANG Xiao-Wei;LIU Xiang;TANG Xiao-Fang;TANG You-Liang. Scheme for Concentration of Unknown Greeberger--Horne--Zeilinger Entangled States via Cavity Decay[J]. 中国物理快报, 2007, 24(3): 602-605.
ZHANG Xiao-Wei, LIU Xiang, TANG Xiao-Fang, TANG You-Liang. Scheme for Concentration of Unknown Greeberger--Horne--Zeilinger Entangled States via Cavity Decay. Chin. Phys. Lett., 2007, 24(3): 602-605.
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