Time evolution of entanglement in a cavity at finite temperature

E.G. Figueiredo, C.A. Linhares, A.P.C. Malbouisson and J.M.C. Malbouisson

Physica A: Statistical Mechanics and its Applications, 2016, vol. 462, issue C, 1261-1272

Abstract: We consider two identical atoms, taken in the harmonic approximation, inside a spherical cavity filled with a field described by an infinite set of oscillators. The atoms are linearly coupled to the field. Using the dressed-state approach and considering the field modes populated with thermal-distribution, we study the effect of temperature on the time evolution of entangled states of the pair of atoms. We particularly analyze the cases of finite and very-large cavities showing that survival and sudden-death of entanglement can happen at finite temperature.

Keywords: Entanglement; Time evolution; Finite-temperature (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:462:y:2016:i:c:p:1261-1272

DOI: 10.1016/j.physa.2016.06.128

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