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Negative Energy Densities in Quantum Field Theory
L. H. Ford
Quantum field theory allows for the suppression of vacuum fluctuations, leading to sub-vacuum phenomena. One of these is the appearance of local negative energy density. Selected a…
Effects of Vacuum Fluctuation Suppression on Atomic Decay Rates
L. H. Ford, Thomas A. Roman
The use of atomic decay rates as a probe of sub-vacuum phenomena will be studied. Because electromagnetic vacuum fluctuations are essential for radiative decay of excited atomic st…
Quantum Lightcone Fluctuations in Compactified Spacetimes
Hongwei Yu, N. F. Svaiter, L. H. Ford
We treat the effects of compactified spatial dimensions on the propagation of light in the uncompactified directions in the context of linearized quantum gravity. We find that the…
A Fluid Analog Model for Boundary Effects in Field Theory
L. H. Ford, N. F. Svaiter
Quantum fluctuations in the density of a fluid with a linear phonon dispersion relation are studied. In particular, we treat the changes in these fluctuations due to non-classical…