Entanglement evolution and transfer in a double Tavis--Cumming model in cavity QED |
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| Authors: | Xu Qing-Jun and Zhang Shi-Ying |
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| Affiliation: | Department of Physics and Electronic Engineering, Zaozhuang University, Zaozhuang 277160, China |
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| Abstract: | We have studied entanglement evolution and transfer in a double
Tavis--Cumming model where two pairs of entangled two-level atoms
AB and CD interact with two single-mode cavity fields a and
b. We show that the Bell-like initial state of atoms AB can
exhibit entanglement sudden death which should be independent of the
initial entanglement of atoms CD. Also, we show that the initial
entanglement of one atomic pair can be transferred into another
pair, as well as the possible subsystems, that become entangled
during evolution. |
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| Keywords: | entanglement evolution entanglement transfer Tavis--Cumming model |
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