| Remote preparation of a Greenberger-Horne-Zeilinger state via a two-particle entangled state |
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| 作者姓名： | 林秀 李洪才 林秀敏 李兴华 杨榕灿 |
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| 作者单位： | School of Physics and Optoelectronics, Fujian Normal University,
Fuzhou 350007, China;School of Physics and Optoelectronics, Fujian Normal University,
Fuzhou 350007, China;School of Physics and Optoelectronics, Fujian Normal University,
Fuzhou 350007, China;School of Physics and Optoelectronics, Fujian Normal University,
Fuzhou 350007, China;School of Physics and Optoelectronics, 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 Fund of the Natural Science of Fujian Province,
China (Grant No Z0512006). |
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| 摘 要： | We present two schemes for realizing the remote preparation of a Greenberger-Horne-Zeilinger （GHZ） state. The first scheme is to remotely prepare a general N-particle GHZ state with two steps. One is to prepare a qubit state by using finite classical bits from sender to receiver via a two-particle entangled state, and the other is that the receiver introduces N - 1 additional particles and performs N - 1 controlled-not （C-Not） operations. The second scheme is to remotely prepare an N-atom GHZ state via a two-atom entangled state in cavity quantum electrodynamics （QED）. The two schemes require only a two-particle entangled state used as a quantum channel, so we reduce the requirement for entanglement.
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| 关 键 词： | 双粒子纠缠态 Greenberger-Horne-Zeilinger态 远程态制备 腔场量子电动力学 |
| 收稿时间： | 2005-11-22 |
| 修稿时间： | 2005-11-222006-11-17 |
Remote preparation of a Greenberger--Horne--Zeilinger state via a two-particle entangled state |
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| Lin Xiu,Li Hong-Cai,Lin Xiu-Min,Li Xing-Hua and Yang Rong-Can.Remote preparation of a Greenberger-Horne-Zeilinger state via a two-particle entangled state[J].Chinese Physics B,2007,16(5):1209-1214. |
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| Authors: | Lin Xiu Li Hong-Cai Lin Xiu-Min Li Xing-Hua and Yang Rong-Can |
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| Institution: | School of Physics and Optoelectronics, Fujian Normal University, Fuzhou 350007, China |
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| Abstract: | We present two schemes for realizing the remote preparation of a
Greenberger--Horne--Zeilinger (GHZ) state. The first scheme is to remotely
prepare a general N-particle GHZ state with two steps. One is to prepare a qubit
state by using finite classical bits from sender to receiver via a
two-particle entangled state, and the other is that the receiver introduces
N - 1 additional particles and performs N - 1 controlled-not (C-Not)
operations. The second scheme is to remotely prepare an N-atom
GHZ state via
a two-atom entangled state in cavity quantum electrodynamics (QED). The two
schemes require only a two-particle entangled state used as a quantum
channel, so we reduce the requirement for entanglement. |
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| Keywords: | remote state preparation two-particle entangled state Greenberger--Horne--Zeilinger hspace*{1 9cm} (GHZ) state controlled-not operation cavity
quantum electrodynamics (QED) |
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