Dynamics of nonclassical correlations via local quantum uncertainty for atom and field interacting into a lossy cavity QED

J.S. Sales, W.B. Cardoso, A.T. Avelar and N.G. de Almeida

Physica A: Statistical Mechanics and its Applications, 2016, vol. 443, issue C, 399-405

Abstract: We study the dynamics of nonclassical correlations of an atom interacting with a squeezed coherent state or a squeezed coherent states superposition (SCSS) trapped into a lossy thermal cavity QED by using local quantum uncertainty (LQU). By varying several parameters of control, such as the average photon number of the coherent state and the squeezing parameter, we are able to select the atom–field interaction time allowing us to obtain the higher value to LQU. In addition, after the atom leaving the cavity, for certain range of the displacement parameter we have found a sudden change in the LQU as a function of time when the squeezing parameter of the SCSS is very small.

Keywords: Nonclassical correlations; Atom–field interaction; Cavity QED; Squeezed coherent states (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:443:y:2016:i:c:p:399-405

DOI: 10.1016/j.physa.2015.09.096

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