Enhancement of quantum correlations for the system of cavity QED by applying bang-bang pulses
arXiv:1208.5381 · doi:10.1209/0295-5075/95/60003
Abstract
We propose a scheme of increasing quantum correlations for the cavity quantum electrodynamics system consisting of two noninteracting two-level atoms each locally interacting with its own quantized field mode by bang-bang pulses. We investigate the influence of the bang-bang pulses on the dynamics of quantum discord, entanglement, quantum mutual information and classical correlation between the two atoms. It is shown that the amount of quantum discord and entanglement of the two atoms can be improved by applying the bang-bang pulses.
arXiv comment6 pages, 5 figures
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- Pulse control of sudden transition for two qubits in XY spin baths and quantum phase transition
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