Scalar field as a Bose-Einstein condensate in a Schwarzschild-de Sitter
spacetime
release_g62yumo23fhbjbj6hneq6rzxym
by
Elías Castellanos,
Celia Escamilla-Rivera,
Claus Lämmerzahl and
Alfredo Macías
2015
Abstract
In this paper we analyze some properties of a scalar field configuration,
where it is considered as a trapped Bose-Einstein condensate in a
Schwarzschild-de Sitter background spacetime. In a natural way, the geometry of
the curved spacetime provides an effective trapping potential for the scalar
field configuration. This allows us to explore some thermodynamical properties
of the system. Additionally, the curved geometry of the spacetime also induces
a position dependent self-interaction parameter, which can be interpreted as a
kind of gravitational Feshbach resonance, that could affect the stability of
the cloud and could be used to obtain information about the interactions among
the components of the system..
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