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Population Dynamics of Excited Atoms in Dissipative Cavities

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Abstract

Population dynamics of excited atoms in dissipative cavities is investigated in this work. We present a method of controlling populations of excited atoms in dissipative cavities. For the initial state |e e〉 A B |00〉 a b , the repopulation of excited atoms can be obtained by using atom-cavity couplings and non-Markovian effects after the atomic excited energy decays to zero. For the initial state |g g〉 A B |11〉 a b , the two atoms can also be populated to the excited states from the initial ground states by using atom-cavity couplings and non-Markovian effects. And the stronger the atom-cavity coupling or the non-Markovian effect is, the larger the number of repopulation of excited atoms is. Particularly, when the atom-cavity coupling or the non-Markovian effect is very strong, the number of repopulation of excited atoms can be close to one in a short time and will tend to a steady value in a long time.

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Authors and Affiliations

  1. Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, College of Physics and Information Science, Hunan Normal University, Changsha, 410081, China

    Hong-Mei Zou, Yu Liu & Mao-Fa Fang

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  1. Hong-Mei Zou
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  2. Yu Liu
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  3. Mao-Fa Fang
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Correspondence to Hong-Mei Zou.

Additional information

Project supported by the National Natural Science Foundation of China (Grant No: 2010FJ3148, 11374096) and the Doctoral Science Foundation of Hunan Normal University, China.

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Zou, HM., Liu, Y. & Fang, MF. Population Dynamics of Excited Atoms in Dissipative Cavities. Int J Theor Phys 55, 4469–4479 (2016). https://doi.org/10.1007/s10773-016-3070-3

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