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gr-qc1999
Geometric Background for Thermal Field Theories
Massimo Blasone, Yuan-Xing Gui, Francis Vendrell
We study a new spacetime which is shown to be the general geometrical background for Thermal Field Theories at equilibrium. The different formalisms of Thermal Field Theory are uni…
gr-qc1997
Covariant path integrals and black holes
F. Vendrell, M. E. Ortiz
The thermal nature of the propagator in a collapsed black-hole spacetime is shown to follow from the non-trivial topology of the configuration space in tortoise coordinates by usin…
gr-qc1997
Some exact results on the CGHS black-hole radiation
F. Vendrell
Theorems on the emission of massless scalar particles by the CGHS black hole are presented. The convergence of the mean number of particles created spontaneously in an arbitrary st…