| Stability of Decoherence-Free Subspaces under Stochastic Phase Fluctuations |
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| 引用本文： | ZENG Hao-Sheng NIE Jian-Jun KUANG Le-Man. Stability of Decoherence-Free Subspaces under Stochastic Phase Fluctuations[J]. 理论物理通讯, 2006, 46(3): 447-452 |
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| 作者姓名： | ZENG Hao-Sheng NIE Jian-Jun KUANG Le-Man |
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| 作者单位： | Department of Physics, Hunan Normal University, Changsha 410081, China |
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| 基金项目： | The project supported by the National Fundamental Research Program of China under Grant No. 2001CB309310, National Natural Science Foundation of China under Grant Nos. 10347128, 10325523, and 90203018, the Natural Science Foundation of Hunan Province of China under Grant No. 04JJ3017, the China Postdoctoral Science Foundation under Grant No. 2005037695, and the Scientific Research Fund of Educational Bureau of Hunan Province of China under Grant No. 05B041 |
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| 摘 要： |
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| 关 键 词： | 脱散自由空间 随机相涨落 次空间 理论物理 |
| 收稿时间： | 2005-11-28 |
| 修稿时间： | 2005-11-28 |
Stability of Decoherence-Free Subspaces under Stochastic Phase Fluctuations |
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| Abstract: | We study the stability of decoherence-free subspaces under stochastic phase fluctuations by analytically and numerically evaluating the fidelity of the corresponding decoherence-free subspace bases with stochastic phase fluctuations under the evolution of environment. The environment is modeled by a bath of oscillators with infinite degrees of freedom and the register-bath coupling is chosen to be a general dissipation-decoherence form. It is found that the decoherence-free subspaces take on good stability in the case of small dissipation and small phase fluctuations. |
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| Keywords: | decoherence-free subspaces stochastic phase fluctuations |
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