Boson Stars with SelfInteracting Quantum Scalar Fields
Abstract
The KleinGordonEinstein equations of classical real scalar fields have timedependent solutions (periodic in time). We show that quantum real scalar fields can form nonoscillating (static) solitonic objects, which are quite similar to the solutions describing boson stars formed with classical and quantum complex scalar fields (the latter will be studied in this paper). We numerically analyze the difference between them concerning the mass of boson stars. On the other hand, we suggest an interesting test (a viable process that the boson star may undergo in the early universe) for the formation of boson stars. That is, it is questioned that after a secondorder phase transition (a simple toy model will be considered here), what is the fate of the boson star composed of quantum real scalar field.
 Publication:

arXiv eprints
 Pub Date:
 July 2002
 arXiv:
 arXiv:grqc/0207073
 Bibcode:
 2002gr.qc.....7073H
 Keywords:

 Astrophysics;
 General Relativity and Quantum Cosmology;
 High Energy Physics  Theory
 EPrint:
 18 pages, Revtex