Abstract:
The influence of dipole-dipole interactions between the two two-level entangled atoms for dynamics of quantum entanglement is studied in the system of matter-field interaction in quantum optics. The results show that the dipole-dipole interaction is capable to suppress dynamics of quantum entanglement (concurrence). If we have no regard for the dipole-dipole interaction, the dynamic of quantum entanglement is periodic oscillation including two different frequencies. Meanwhile, the frequency is decreasing with the increasing of the dipole-dipole interaction. When this interaction is much larger than that between the atoms and independent the single-mode field (modeled as extern environment), the process of dynamic of quantum entanglement is cosine oscillation with frequency
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