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Instability of nonminimally coupled scalar fields in the spacetime of slowly rotating compact objects

Full text
Author(s):
Mendes, Raissa F. P. ; Matsas, George E. A. ; Vanzella, Daniel A. T.
Total Authors: 3
Document type: Journal article
Source: PHYSICAL REVIEW D; v. 90, n. 4, p. 12-pg., 2014-08-18.
Abstract

Nonminimally coupled free scalar fields may be unstable in the spacetime of compact objects. Such instability can be triggered by classical seeds or, more simply, by quantum fluctuations giving rise to the so-called "vacuum awakening effect." Here, we investigate how the parameter space that characterizes the instability is affected when the object gains some rotation. For this purpose, we focus on the stability analysis of nonminimally coupled scalar fields in the spacetime of slowly spinning matter shells. (AU)

FAPESP's process: 11/06429-3 - Quantum field theory in spherically symmetric spacetimes and the vacuum awakening effect.
Grantee:Raissa Fernandes Pessoa Mendes
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 07/55449-1 - Physics in curved spacetimes
Grantee:George Emanuel Avraam Matsas
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 13/12165-4 - Quantum phenomena in curved spacetimes
Grantee:Daniel Augusto Turolla Vanzela
Support Opportunities: Regular Research Grants