| Probabilistic teleportation of an unknown N-atom state using a two-atom nonmaximally entangled state in cavity QED |
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| 作者姓名： | 林秀 李洪才 杨榕灿 |
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| 作者单位： | School of Physics and Optoelectronics Technology, Fujian Normal University,Fuzhou 350007, China;School of Physics and Optoelectronics Technology, Fujian Normal University,Fuzhou 350007, China;School of Physics and Optoelectronics Technology, Fujian Normal University,Fuzhou 350007, China |
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| 基金项目： | Project
supported by the National Natural Science Foundation of China (Grant
No~10574022), and
the Funds of the Natural Science of Fujian Province, China (Grant
No~Z0512006). |
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| 摘 要： | We present a scheme for realizing probabilistic teleportation of an unknown N-atom state via cavity QED. This scheme requires only a nonmaximally entangled pair to be used as a quantum channel, so the requirement of entanglement is reduced. In addition, our scheme does not involve the Bell-state measurement and is insensitive to the cavity decay, which is important from the experimental point of view. If the quantum channel is a two-atom maximally entangled state, teleportation of an unknown N-atom state can be realized by a simpler scheme via cavity QED.
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| 关 键 词： | QED腔场 两原子非最大纠缠态 未知N原子态 随机量子隐性传态 |
| 收稿时间： | 2006-04-11 |
| 修稿时间： | 2006-04-112006-06-20 |
Probabilistic teleportation of an unknown N-atom state using a two-atom nonmaximally entangled state in cavity QED |
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| Lin Xiu,Li Hong-Cai and Yang Rong-Can.Probabilistic teleportation of an unknown N-atom state using a two-atom nonmaximally entangled state in cavity QED[J].Chinese Physics B,2007,16(3):624-629. |
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| Authors: | Lin Xiu Li Hong-Cai and Yang Rong-Can |
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| Institution: | School of Physics and Optoelectronics Technology, Fujian Normal University, Fuzhou 350007, China |
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| Abstract: | We present a scheme for realizing probabilistic teleportation of an unknown
$N$-atom state via cavity QED. This scheme requires only a nonmaximally
entangled pair to be used as a quantum channel, so the requirement of
entanglement is reduced. In addition, our scheme does not involve the Bell-state
measurement and is insensitive to the cavity decay, which is important from
the experimental point of view. If the quantum channel is a two-atom
maximally entangled state, teleportation of an unknown $N$-atom state can be
realized by a simpler scheme via cavity QED. |
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| Keywords: | probabilistic teleportation without Bell-state measurement atomic entangled state nonmaximally entangled pair cavity QED |
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