3 citations · 3 across the 1 of their papers we have counts for
5 papers
Energy Density-Flux Correlations in an Unusual Quantum State and in the Vacuum
L. H. Ford, Thomas A. Roman
In this paper we consider the question of the degree to which negative and positive energy are intertwined. We examine in more detail a previously studied quantum state of the mass…
Problems with wormholes which involve arbitrarily small amounts of exotic matter
C. J. Fewster, T. A. Roman
A quantum inequality bound on the expectation value of the null-contracted stress tensor in an arbitrary Hadamard state is used to obtain constraints on the geometries of traversab…
On wormholes with arbitrarily small quantities of exotic matter
C. J. Fewster, T. A. Roman
Recently several models of traversable wormholes have been proposed which require only arbitrarily small amounts of negative energy to hold them open against self-collapse. If the…
Minkowski Vacuum Stress Tensor Fluctuations
L. H. Ford, Thomas A. Roman
We study the fluctuations of the stress tensor for a massless scalar field in two and four-dimensional Minkowski spacetime in the vacuum state. Covariant expressions for the stress…
Energy Flux Correlations and Moving Mirrors
L. H. Ford, Thomas A. Roman
We study the quantum stress tensor correlation function for a massless scalar field in a flat two-dimensional spacetime containing a moving mirror. We construct the correlation fun…