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Paper detail

Scalar Field as a Bose-Einstein Condensate?

We discuss the analogy between a classical scalar field with a self-interacting potential, in a curved spacetime described by a quasi--bounded state, and a trapped Bose-Einstein condensate. In this context, we compare the Klein-Gordon equation with the Gross-Pitaevskii equation. Moreover, the introduction of a curved background spacetime endows, in a natural way, an equivalence to the Gross-Pitaevskii equation with an explicit confinement potential. The curvature also induces a position dependent self-interaction parameter. We exploit this analogy by means of the Thomas-Fermi approximation, commonly used to describe the Bose-Einstein condensate, in order to analyze the quasi bound scalar field distribution surrounding a black hole.

preprint2014arXivOpen access
Elías CastellanosCelia Escamilla-RiveraAlfredo MacíasDarío Núñez
astro-ph.COgr-qc
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Elías CastellanosCelia Escamilla-RiveraAlfredo MacíasDarío Núñez

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