Q-stars and charged q-stars

Prikas, A

dc.contributor.author	Prikas, A	en
dc.date.accessioned	2014-03-01T01:18:16Z
dc.date.available	2014-03-01T01:18:16Z
dc.date.issued	2002	en
dc.identifier.issn	0556-2821	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14903
dc.subject	Gravitational Collapse	en
dc.subject	Energy Momentum Tensor	en
dc.subject.classification	Astronomy & Astrophysics	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	acceleration	en
dc.subject.other	article	en
dc.subject.other	calculation	en
dc.subject.other	cosmos	en
dc.subject.other	energy	en
dc.subject.other	gravity	en
dc.subject.other	mathematical analysis	en
dc.subject.other	particulate matter	en
dc.subject.other	physics	en
dc.title	Q-stars and charged q-stars	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevD.66.025023	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevD.66.025023	en
heal.identifier.secondary	025023	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	We present the formalism of q-stars with local or global U(1) symmetry. The equations we formulate are solved numerically and provide the main features of the soliton star. We study its behavior when the symmetry is local in contrast with the global case. A general result is that the soliton remains stable and does not decay into free particles and the electrostatic repulsion preserves it from gravitational collapse. We also investigate the case of a q-star with a nonminimal energy-momentum tensor and find that the soliton is stable even in some cases of collapse when the coupling to gravity is absent. © 2002 The American Physical Society.	en
heal.publisher	AMERICAN PHYSICAL SOC	en
heal.journalName	Physical Review D	en
dc.identifier.doi	10.1103/PhysRevD.66.025023	en
dc.identifier.isi	ISI:000177285600111	en
dc.identifier.volume	66	en
dc.identifier.issue	2	en