Purification of entangled states for two atoms via cavity decay |
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Authors: | Zheng Shi-Biao |
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Institution: | Department of Electronic Science and Applied Physics Fuzhou
University, Fuzhou 350002, China |
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Abstract: | In this paper a scheme is proposed for the purification of entangled
states for two atoms trapped in two distant cavities via cavity
decay. In the scheme, the atoms have no probability of being
populated in the excited state and thus the atomic spontaneous
emission is suppressed. This scheme is valid no matter when the
cavity decay rate is larger or smaller than the effective
atom-cavity coupling strength. The fidelity of the final state is
not affected by the imperfection of the photodetectors. |
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Keywords: | purification entangled state cavity decay |
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