15 papers
Obstructions to Minimal Regular Black Hole Cosmologies
Damien A. Easson
We derive an obstruction to Friedmann--Lemaître--Robertson--Walker (FLRW) daughter cosmologies from static, asymptotically flat regular black holes. The trapped region of such a p…
Anomaly-driven evaporation endpoints of a two-dimensional regular black hole
Damien A. Easson
Spherical reduction of four-dimensional minimally coupled matter yields a two-dimensional theory with dilaton-coupled matter rather than minimally coupled conformal matter. We use…
Geodesically Complete Curvature-Bounce Inflation
Damien A. Easson
The early universe need not be described by an incomplete inflationary phase connected to a separate, more exotic prehistory. Recent results show that, within non-static FRW cosmol…
Resonant delay in a stationary quantum clock: Lifting the threshold mask
Paul C. W. Davies, Damien A. Easson
Quantum transit times have a long history of inequivalent definitions, including phase times, dwell times, and quantum-clock constructions. In this context we revisit the Salecker-…
The fate of Schwarzschild--de Sitter black holes: nonequilibrium evaporation
Damien A. Easson
We present a fully analytic treatment of Schwarzschild--de~Sitter (SdS) black-hole evaporation in two-dimensional dilaton gravity with anomaly-induced backreaction. Starting from t…
Cauchy-horizon flux coefficients in the reduced Polyakov model
Damien A. Easson
We derive the leading Cauchy-horizon flux coefficient in the stationary reduced Polyakov sector of spherically symmetric charged black holes. For a nonextremal inner horizon with a…