| Entropy squeezing of an atom with a k-photon in the Jaynes-Cummings model |
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| 作者姓名： | 康冬鹏 廖庆洪 Ahamd Muhammad Ashfaq 王月媛 刘树田 |
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| 作者单位： | Department of Physics, Harbin Institute of Technology, Harbin 150001, China;Department of Physics, Harbin Institute of Technology, Harbin 150001, China;COMSATS Institute of Information Technology, Department of Physics, Lahore 54000, Pakistan;Department of Physics, Harbin Institute of Technology, Harbin 150001, China;Department of Physics, Harbin Institute of Technology, Harbin 150001, China |
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| 基金项目： | Project supported by the National
Natural Science Foundation of China (Grant Nos. 10674038 and
10604042), and the National Basic Research Program of China (Grant
No. 2006CB302901). |
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| 摘 要： | The entropy squeezing of an atom with a k-photon in the Jaynes-Cummings model is investigated. For comparison, we also study the corresponding variance squeezing and atomic inversion. Analytical results show that entropy squeezing is preferable to variance squeezing for zero atomic inversion. Moreover, for initial conditions of the system the relation between squeezing and photon transition number is also discussed. This provides a theoretical approach to finding out the optimal entropy squeezing.
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| 关 键 词： | Jaynes–Cumming model entropy squeezing variance squeezing atomic inversion |
| 收稿时间： | 2009-03-21 |
| 修稿时间： | 6/1/2009 12:00:00 AM |
Entropy squeezing of an atom with a k-photon in the Jaynes--Cummings model |
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| Kang Dong-Peng,Liao Qing-Hong,Ahamd Muhammad Ashfaq,Wang Yue-Yuan and Liu Shu-Tian.Entropy squeezing of an atom with a k-photon in the Jaynes-Cummings model[J].Chinese Physics B,2010,19(1):14206-014206. |
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| Authors: | Kang Dong-Peng Liao Qing-Hong Ahamd Muhammad Ashfaq Wang Yue-Yuan and Liu Shu-Tian |
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| Institution: | COMSATS Institute of Information Technology, Department of Physics, Lahore 54000, Pakistan; Department of Physics, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | The entropy squeezing of an atom with a k-photon in the
Jaynes--Cummings model is investigated. For comparison, we also
study the corresponding variance squeezing and atomic inversion.
Analytical results show that entropy squeezing is preferable
to variance squeezing for zero atomic inversion. Moreover, for
initial conditions of the system the relation between squeezing and
photon transition number is also discussed. This provides a
theoretical approach to finding out the optimal entropy squeezing. |
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| Keywords: | Jaynes--Cumming model entropy squeezing variance
squeezing atomic inversion |
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