Balbinot, Roberto, Fabbri, Alessandro, Nicolini, Piero and Sutton, Patrick J. ORCID: https://orcid.org/0000-0003-1614-3922 2002. Vacuum polarization in two-dimensional static spacetimes and dimensional reduction. Physical Review D 66 (2) , 024014. 10.1103/PhysRevD.66.024014 |
Official URL: http://dx.doi.org/10.1103/PhysRevD.66.024014
Abstract
We obtain an analytic approximation for the effective action of a quantum scalar field in a general static two-dimensional spacetime. We apply this to the dilaton gravity model resulting from the spherical reduction of a massive, non-minimally coupled scalar field in the four-dimensional Schwarzschild geometry. Careful analysis near the event horizon shows the resulting two-dimensional system to be regular in the Hartle-Hawking state for general values of the field mass, coupling, and angular momentum, while at spatial infinity it reduces to a thermal gas at the black-hole temperature.
Item Type: | Article |
---|---|
Date Type: | Publication |
Status: | Published |
Schools: | Physics and Astronomy |
Subjects: | Q Science > QB Astronomy |
Publisher: | American Physical Society |
ISSN: | 0556-2821 |
Last Modified: | 13 Jan 2023 03:22 |
URI: | https://orca.cardiff.ac.uk/id/eprint/35958 |
Citation Data
Cited 15 times in Scopus. View in Scopus. Powered By Scopus® Data
Actions (repository staff only)
Edit Item |