Long-time death of nonclassicality of a cavity field interacting with a charge qubit and its own reservoir |
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Authors: | Abdel-Baset A. Mohamed |
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Affiliation: | Faculty of Science, Assiut University, Assiut, Egypt |
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Abstract: | A measure of nonclassicality of quantum states based on the negative values of the Wigner function (WF) of a charge qubit-field system is proposed. It is found that, the negative values of the field WF are very sensitive to any change in dissipation parameter. The dissipation leads to a long-time death for both entanglement and nonclassicality, and also the coherence of the cavity state is lost completely. |
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