Hot scalar radiation around a cosmic string setting bounds on the coupling parameter $\xi$

Abstract

In this work, by investigating the low temperature behaviour of a scalar field around a cosmic string, and assuming stable thermodynamic equilibrium, it is shown that the coupling parameter of the field with curvature must be restricted to a certain range of values whose bounds are determined by the deficit angle of the associated conical geometry.

12 pages, 1 figure. The material has been expanded and the manuscript matches the published version (JHEP)

References in corpus (3)

• Cosmic Strings
• A New Fate of a Warped 5D FRW Model with a U(1) Scalar Gauge Field
• Hot scalar radiation setting bounds on the curvature coupling parameter

Cited by in corpus (5)

• Vacuum fluctuations of a scalar field near a reflecting boundary and their effects on the motion of a test particle
• Probing thermal fluctuations through scalar test particles
• Finite temperature charge and current densities around a cosmic string in AdS spacetime with compact dimension
• Ambiguities in the local thermal behavior of the scalar radiation in one-dimensional boxes
• Thermodynamic stability in an Einstein universe