8 papers
Black Hole in Thermal Equilibrium with a Spin-2 Quantum Field
David Hochberg, Sergey V. Sushkov
An approximate form for the vacuum averaged stress-energy tensor of a conformal spin-2 quantum field on a black hole background is employed as a source term in the semiclassical Ei…
Quantum Mechanical Lorentzian Wormholes in Cosmological Backgrounds
David Hochberg
We present a minisuperspace analysis of a class of Lorentzian wormholes that evolves quantum mechanically in a background Friedman Robertson Walker spacetime. The quantum mechanica…
Energy Density of Non-Minimally Coupled Scalar Field Cosmologies
David Hochberg, Thomas W. Kephart
Scalar fields coupled to gravity via in arbitrary Friedmann-Robertson-Walker backgrounds can be represented by an effective flat space field theory. We derive an expressio…
Free Energy and Entropy for Semi-classical Black Holes in the Canonical Ensemble
David Hochberg
We consider the thermodynamics of a black hole coupled to thermal radiation in a spatially finite (spherical) region. Thermodynamic state functions are derived in the canonical ens…
Effective Potential of a Black Hole in Thermal Equilibrium with Quantum Fields
David Hochberg, Thomas W. Kephart, James W. York
Expectation values of one-loop renormalized thermal equilibrium stress-energy tensors of free conformal scalars, spin- fermions and U(1) gauge fields on a Schwarzschil…
Gauge Field Back-reaction on a Black Hole
David Hochberg, Thomas W. Kephart
The order fluctuations of gauge fields in the vicinity of a blackhole can create a repulsive antigravity region extending out beyond the renormalized Schwarzschild horizon.…