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Ghasemian E, Tavassoli M K. Investigation of dissipation effect in an interacting system consists of atomic BEC and a single-mode quantized field. ICOP & ICPET _ INPC _ ICOFS 2017; 23 :585-588
URL: http://opsi.ir/article-1-1260-en.html
Abstract:   (2386 Views)

Abstract- In this paper, we consider a system consists of a number of two-level atoms in Bose Einstein condensate (BEC) and a single-mode quantized field which interacts with each other in the presence of two different damping sources. The reservoirs which we consider here are thermal and squeezed vacuum ones corresponding to field and atom modes. Numerical calculations  show that, the mean number of atoms in the BEC, mean number of photons in the cavity and atomic population inversion possess damped oscillatory behavior due to the presence of reservoirs. Also, squeezing effect in the field quadrature can be observed especially when squeezed vacuum reservoirs are taken into account. As an outstanding property of this model we may refer to the fact that one can extract the atom-field coupling constant from the frequency of oscillations in the mentioned quantities such as atomic population inversion.

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Type of Study: Research | Subject: Special

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