Vacuum polarization for a massless scalar field in the global monopole spacetime at finite temperature

2000/12/27 by F. C. Carvalho, F C Carvalho, E. R. Bezerra de Mello +1 · 4 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Euclidean geometry #Magnetic monopole #Massless particle #Quantum Electrodynamics and Casimir Effect #Scalar (mathematics) #Scalar field #Spacetime #Thermal #Vacuum expectation value #Vacuum polarization #hep-th

paper · pdf · doi:10.1088/0264-9381/18/9/303

published as Class.Quant.Grav. 18 (2001) 1637-1650 · 21 pages in LATEX and 3 figures in poscript

arxiv created 2000/12/27 · openalex publication_date 2001/04/06 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

In this paper we calculate the effects produced by the temperature in the renormalized vacuum expectation value of the square of the massless scalar field in the pointlike global monopole spacetime. In order to develop this calculation, we had to construct the Euclidean thermal Green function associated with this field in this background. We also calculate the high-temperature limit for the thermal average of the zero-zero component of the energy-momentum tensor.

Citations

• Topology of cosmic domains and strings

Cited by

• Casimir densities for a spherical shell in the global monopole background
• Spinor Casimir densities for a spherical shell in the global monopole spacetime
• Vacuum polarization by a global monopole with finite core
• Vacuum polarization for a massless spin-1/2 field in the global monopole spacetime at nonzero temperature