The effect of dipole-dipole interaction for two atoms with different couplings in non-Markovian environment

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Li, Yang
Zhou, Jiang
Guo, Hong
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Using the nonperturbative method, we study the exact entanglement dynamics of two two-level dipole-dipole interacting atoms coupled to a common non-Markovian reservoir with different coupling strengths. Besides analyzing the conditions for the existence of steady state, we find, though the dipole-dipole interaction could destroy the stationary entanglement, that relatively strong dipole-dipole interaction does suppress the disentanglement in the initial period of time. These results are helpful for the practical engineering of the entanglement in the future.
Comment: 6 pages, 2 figures
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Quantum Physics
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