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| Cluster-state preparation in thermal cavities without single-qubit operation | |
| 引用本文： | 张小龙,冯芒,高克林. Cluster-state preparation in thermal cavities without single-qubit operation[J]. 中国物理 B, 2008, 17(1): 43-48 |
| 作者姓名： | 张小龙 冯芒 高克林 |
| 作者单位： | Center for Modern Physics andDepartment of Physics, Chongqing University, Chongqing,400044, China^b)State Key Laboratory of Magnetic Resonance and Atomic andMolecular Physics, Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences,;State Key Laboratory of Magnetic Resonance and Atomic andMolecular Physics, Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences, Wuhan,430071, China;State Key Laboratory of Magnetic Resonance and Atomic andMolecular Physics, Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences, Wuhan,430071, China |
| 基金项目： | Project supported by the NationalNatural Science Foundation of China ( Grant Nos 10474118 and60490280), the Hubei Provincial Foundation for distinguishedscholars, and the National Basic Research Program of China (GrantNos 2005CB724502 and 2006CB921203 |
| 摘 要： | A potential scheme is proposed for generating cluster states of many atoms in cavity quantum electradynamics （QED）, in which an unorthodox encoding is employed with the ground state being qubit [0〉 while two closely spaced upper states being qubit ｜1〉. Throughout the scheme the cavities can be in thermal states but axe only virtually excited. We show how to create the cluster states by performing a two-step hut no single-qubit operation. Discussion is also carried out on the experimental feasibility of our scheme. |
| 关 键 词： | 簇集状态 空泡 QED 量子计算 |
| 收稿时间： | 2007-03-01 |
| 修稿时间： | 2007-08-02 |
Cluster-state preparation in thermal cavities without single-qubit operation |
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| Zhang Xiao-Long,Feng Mang and Gao Ke-Lin. Cluster-state preparation in thermal cavities without single-qubit operation[J]. Chinese Physics B, 2008, 17(1): 43-48 | |
| Authors: | Zhang Xiao-Long Feng Mang Gao Ke-Lin |
| Affiliation: | Center for Modern Physics andDepartment of Physics, Chongqing University, Chongqing,400044, China^b)State Key Laboratory of Magnetic Resonance and Atomic andMolecular Physics, Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences,; State Key Laboratory of Magnetic Resonance and Atomic andMolecular Physics, Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences, Wuhan,430071, China |
| Abstract: | A potential scheme is proposed for generating cluster states of manyatoms in cavity quantum electradynamics (QED), in which an unorthodoxencoding is employed with the ground state being qubit $leftvert0rightrangle $ while two closely spaced upper states being qubit$leftvert 1rightrangle $. Throughout the scheme the cavities canbe in thermal states but are only virtually excited. We show how tocreate the cluster states by performing a two-step but nosingle-qubit operation. Discussion is also carried out on theexperimental feasibility of our scheme. |
| Keywords: | cluster-state cavity QED entanglement quantum computing |
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