Quantum Entanglement in Two-Photon Tavis–Cummings Model with a Kerr Nonlinearity |
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Authors: | Jun-Mao Ma Zhi-Yong Jiao Ning Li |
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Institution: | (1) College of Physics Science and Technology, China University of Petroleum (East China), Qingdao, 266555, Shandong Province, People’s Republic of China |
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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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Keywords: | Quantum entanglement Reduced quantum entropy Relative quantum entropy |
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