| One-Step Implementation of Mulitqubit Quantum Phase Gate in a Cavity QED System |
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| 作者姓名： | 樊秋波 |
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| 作者单位： | College of Mathematics and Physics, Xuzhou Institute of Technology, Xuzhou 221008 |
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| 基金项目： | The author thanks J. Song and Y. Xia for valuable discussion. |
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| 摘 要： | An alternative protocol is proposed to implement three-qubit phase gate between photon and atoms in a high-Q bimodel optical cavity. The idea can be extended to directly implement N-qubit phase gate, and the gating time that is required to implement the protocol does not rise with increasing number of qubits. The influence of cavity decay and atomic spontaneous emission on the gate fidelity is also discussed.
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| 关 键 词： | 量子论 量子计算 理论物理 数学物理方法 |
| 收稿时间： | 2007-10-08 |
One-Step Implementation of Mulitqubit Quantum Phase Gate in a Cavity QED System |
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| FAN Qiu-Bo.One-Step Implementation of Mulitqubit Quantum Phase Gate in a Cavity QED System[J].Chinese Physics Letters,2008,25(2):379-382. |
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| Authors: | FAN Qiu-Bo |
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| Institution: | College of Mathematics and Physics, Xuzhou Institute of Technology, Xuzhou 221008 |
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| Abstract: | An alternative protocol is proposed to implement three-qubit phase gate between photon and atoms in a high-Q bimodel optical cavity. The idea can be extended to directly implement N-qubit phase gate, and the gating time that is required to implement the protocol does not rise with increasing number of qubits. The influence of cavity decay and atomic spontaneous emission on the gate fidelity is also discussed. |
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| Keywords: | 03 67 Hk 03 65 Ud |
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