Are stealth scalar fields stable?

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.124050· OSTI ID:21408097

Faraoni, Valerio; Moreno, Andres F. Zambrano ^[1]

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1. Physics Department, Bishop's University, 2600 College Street, Sherbrooke, Quebec, J1M 1Z7 (Canada)

Nongravitating (stealth) scalar fields associated with Minkowski space in scalar-tensor gravity are examined. Analytical solutions for both nonminimally coupled scalar field theory and for Brans-Dicke gravity are studied and their stability with respect to tensor perturbations is assessed using a covariant and gauge-invariant formalism developed for alternative gravity. For Brans-Dicke solutions, the stability with respect to homogeneous perturbations is also studied. There are regions of parameter space corresponding to stability and other regions corresponding to instability.

• OSTI ID: 21408097
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 12; Other Information: DOI: 10.1103/PhysRevD.81.124050; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANALYTICAL SOLUTION
BRANES
DISTURBANCES
GAUGE INVARIANCE
GRAVITATION
INSTABILITY
MINKOWSKI SPACE
PERTURBATION THEORY
SCALAR FIELDS
STABILITY
INVARIANCE PRINCIPLES
MATHEMATICAL SOLUTIONS
MATHEMATICAL SPACE
SPACE