| 多光子过程中的量子保真度 |
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| 引用本文： | 李同锴,张彦立,申俊杰,乔治,崔建坡,何正红. 多光子过程中的量子保真度[J]. 河北大学学报(自然科学版), 2008, 28(4): 365. DOI: 10.3969/j.issn.1000-1565.2008.04.008 |
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| 作者姓名： | 李同锴 张彦立 申俊杰 乔治 崔建坡 何正红 |
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| 作者单位： | 石家庄铁道学院,数理系,河北,石家庄,050043;西南师范大学,物理学院,重庆,400715 |
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| 摘 要： | 运用全量子理论,研究了真空场多光子Jaynes-Cummings模型中场和二能级原子相互作用的保真度,发现原子初始处于基态的几率和失谐量影响保真度.结果表明:原子初始处于基态的几率越大,保真度越大;失谐量越小,保真度就越小.
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| 关 键 词： | 保真度 多光子Jaynes-Cummings模型 两能级原子 |
Evolution of the Fidelity in the Multiphoton Process |
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| LI Tong-kai,ZHANG Yan-li,SHEN Jun-jie,QIAO Zhi,CUI Jian-po,HE Zheng-hong. Evolution of the Fidelity in the Multiphoton Process[J]. Journal of Hebei University (Natural Science Edition), 2008, 28(4): 365. DOI: 10.3969/j.issn.1000-1565.2008.04.008 |
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| Authors: | LI Tong-kai ZHANG Yan-li SHEN Jun-jie QIAO Zhi CUI Jian-po HE Zheng-hong |
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| Abstract: | The properties of the evolution of the fidelities under the interaction of vacuum state for radiation field with two-level atom in the multiphoton process have been investigated.The influences of probability atom being in ground state initially and detuning on the fidelity have been discussed.The numerical results show that the higher the probability of atom being in ground state initially is,the higher the fidelities are;the lower detuning value is,the lower the fidelities are. |
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| Keywords: | fidelity mutiphoton Jaynes-Cumming model two-level atom |
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