21 April 2016 Dynamics of three qubits interacting with electromagnetic field in a lossless cavity
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Abstract
We investigated the entanglement dynamics in a quantum system consisting of three two-level atoms resonantly coupled to a single mode electromagnetic field. We considered the dynamics of the system under consideration for Fock and thermal initial cavity states. An explicit analytical solution of the system has been obtained and the entanglement has been studied with the help of the two-qubit negativity. It was also shown that for both initial cavity states the sudden death of two-qubit entanglement takes place.
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Ekaterina Averchenko, Ekaterina Averchenko, Eugene K. Bashkirov, Eugene K. Bashkirov, } "Dynamics of three qubits interacting with electromagnetic field in a lossless cavity", Proc. SPIE 9917, Saratov Fall Meeting 2015: Third International Symposium on Optics and Biophotonics and Seventh Finnish-Russian Photonics and Laser Symposium (PALS), 99173A (21 April 2016); doi: 10.1117/12.2229831; https://doi.org/10.1117/12.2229831
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