| Scheme for Implementing an N-Qubit Phase Gate via Selective Atom-Field Interaction with Cavity Quantum Electrodynamics |
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| 作者姓名： | 邵晓强 金星日 朱爱东 张寿 YEON Kyu-Hwang |
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| 作者单位： | [1]Department of Physics, College of Science, Yanbian University, Yanji 133002 [2]Center for the Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001 [3]BK21 Program Physics ＆ Department of Physics, College of Natural Science, Chungbuk National University Cheonju, Chungbuk 361-763, Republic of Korea |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 60667001, and the Education Foundation of Yanbian University. |
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| 摘 要： | A scheme for implementing a two-qubit phase gate with atoms sent through a high-Q optical cavity is proposed by choosing nonidentical coupling constants between the atoms and cavity. The atomic spontaneous emission can be suppressed due to the large atom-field detuning. Moreover, the scheme can be generalized to implement an N-qubit phase gate and the gating time does not change with an increase of the number of qubits.
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| 关 键 词： | 量子论 量子电动力学 原子-场相互作用 相门 |
| 收稿时间： | 2007-08-30 |
Scheme for Implementing an N-Qubit Phase Gate via Selective Atom--Field Interaction with Cavity Quantum Electrodynamics |
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| SHAO Xiao-Qiang,JIN Xing-Ri,ZHU Ai-Dong,ZHANG Shou,YEONKyu-Hwang.Scheme for Implementing an N-Qubit Phase Gate via Selective Atom-Field Interaction with Cavity Quantum Electrodynamics[J].Chinese Physics Letters,2008,25(1):27-30. |
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| Authors: | SHAO Xiao-Qiang JIN Xing-Ri ZHU Ai-Dong ZHANG Shou YEONKyu-Hwang |
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| Affiliation: | Department of Physics, College of Science, Yanbian University, Yanji 133002 Center for the Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001BK21 Program Physics & Department of Physics, College of Natural Science, Chungbuk National University, Cheonju, Chungbuk 361-763, Republic of Korea |
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| Abstract: | A scheme for implementing a two-qubit phase gate with atoms sent through a high-Q optical cavity is proposed by choosing nonidentical coupling constants between the atoms and cavity. The atomic spontaneous emission can be suppressed due to the large atom-field detuning. Moreover, the scheme can be generalized to implement an N-qubit phase gate and the gating time does not change with an increase of the number of qubits. |
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| Keywords: | 03 67 Lx 42 50 |
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