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

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 {\em vacuum awakening effect}. Here, we investigate how the parameter space which 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.

11 pages, 6 figures

References in corpus (4)

• Awaking the vacuum in relativistic stars
• The vacuum revealed: the final state of vacuum instabilities in compact stars
• Gravity-induced vacuum dominance
• Particle creation due to tachyonic instability in relativistic stars

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• Exceeding the conformal limit inside rotating neutron stars: Implications to modified theories of gravity
• Vacuum polarization in the horizonless Bardeen metric