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Optics Communications

Polynomial state of the electromagnetic field: generation and statistical properties

Simone Souza, Ardiley Torres Avelar, N. G. de Almeida, B. Baseia

Published Jun 11, 2004• 4 citations
Publisher
DOI
10.1016/j.optcom.2004.05.039

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We consider the formation of entangled quantum states for an atomic Bose condensate interacting with an external electromagnetic field in a single-particle state under conditions of change in various regimes for exchange interaction processes. These states of the Bose system have high phase coherence and are accompanied by the generation of squeezed states of a new type in terms of the parameters defined by a combination of transition operators for the condensate atoms and external-field photons with an appropriate polynomial deformation of the algebra SU (2). We show that localized quantum structures corresponding to stable elementary excitations of the atoms and the field in the condensate can be formed in principle. We also analyze the purely quantum effects of collapse and revival for the level populations of the Bose condensate and the change in atomic statistics as well as determine the conditions for the formation of superstructure of these unsteady states for the Bose system.