21 April 2016 Entanglement between qubits interacting with thermal field
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Abstract
We have investigated the influence of dipole-dipole interaction and initial atomic coherence on atomic entanglement dynamics of two qubits. We have considered a model, in which only one atom couples to a quantum electromagnetic field in a cavity, since one of them can move around the cavity. We have shown that the entanglement arises for all pure atomic state even when both atoms are initially in the excited states. We have also derived that degree of entanglement is enhanced in the presence of the atomic coherence.
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Eugene K. Bashkirov, Eugene K. Bashkirov, Michail S. Mastuygin, Michail S. Mastuygin, } "Entanglement between qubits interacting with thermal field", Proc. SPIE 9917, Saratov Fall Meeting 2015: Third International Symposium on Optics and Biophotonics and Seventh Finnish-Russian Photonics and Laser Symposium (PALS), 991738 (21 April 2016); doi: 10.1117/12.2229762; https://doi.org/10.1117/12.2229762
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