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Quantum Entanglement in Two-Photon Tavis–Cummings Model with a Kerr Nonlinearity

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Abstract

The properties of quantum entanglement in the two-photon Tavis–Cummings model with a Kerr nonlinearity are studied in terms of quantum information entropy theory. The reduced quantum entropy is employed to investigate the quantum entanglement between two two-level atoms and a single-mode coherent field. The relative quantum entropy is employed to investigate the quantum entanglement between the two two-level atoms. The influences of the nonlinear interaction of the Kerr medium with the field and the atomic dipole-dipole interaction on the properties of quantum entanglement of the system are also examined. Some important results are obtained.

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Authors and Affiliations

  1. College of Physics Science and Technology, China University of Petroleum (East China), Qingdao, 266555, Shandong Province, People’s Republic of China

    Jun-Mao Ma, Zhi-Yong Jiao & Ning Li

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  1. Jun-Mao Ma
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  2. Zhi-Yong Jiao
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  3. Ning Li
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Correspondence to Jun-Mao Ma.

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Ma, JM., Jiao, ZY. & Li, N. Quantum Entanglement in Two-Photon Tavis–Cummings Model with a Kerr Nonlinearity. Int J Theor Phys 46, 2550–2559 (2007). https://doi.org/10.1007/s10773-007-9370-x

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  • DOI: https://doi.org/10.1007/s10773-007-9370-x

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