Protocol for multi-party superdense coding by using multi-atom in cavity QED |
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| Authors: | Tan Jia and Fang Mao-Fa |
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| Affiliation: | Department of Physics, Hunan Normal University, Changsha 410081, China |
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| Abstract: | We present a protocol for multi-party superdense coding by using multi-atom in cavity quantum electrodynamics (QED). It is shown that, with a highly detunedcavity mode and a strong driving field, the protocol is insensitiveto both cavity decay and thermal field. It is even certain toidentify GHZ states via detecting the atomic states. Therefore we canrealize the quantum dense coding in a simple way in the multipartysystem. |
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| Keywords: | dense coding cavity QED |
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