Dynamics of impurity, local and non-local information for two non identical qubits

Details Dynamics of impurity, local and non-local information for two non identical qubits Dynamics of impurity, local and non-local information for two non identical qubits

2008-09-25

arxiv.org/abs/0809.4334v1

Optics Communications, Volume 282, Issue 9, 1 May 2009, Pages 1930-1938

Physics

Quantum Physics

Scientific paper

10.1016/j.optcom.2009.01.027

From the separability point of view the problem of two atoms interact with a single cavity mode is investigated. The density matrix is calculated and used to discuss the entanglement and to examine the dynamics of the local and non-local information. Our examination concentrated on the variation in the mean photon number and the ratio of the coupling parameters. Furthermore, we have also assumed that the atomic system is initially in the ground states as well as in the intermediate states. It has been shown that the local information is transferred to non-local information when the impurity of one qubit or both is maximum.

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