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5 papers · 2 filters
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…
A quantum description of bubble growth in a superheated fluid
S. Choi, K. M. Galdamez, B. Sundaram
We discuss a quantum description of bubble growth in a superheated liquid Helium by addressing the problem of operator ordering ambiguities that arise due to the presence of positi…
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…
A Unified Treatment of Convexity of Relative Entropy and Related Trace Functions, with Conditions for Equality
Anna Jencova, Mary Beth Ruskai
We introduce a generalization of relative entropy derived from the Wigner-Yanase-Dyson entropy and give a simple, self-contained proof that it is convex. Moreover, special cases yi…