174 citations · 535 across the 25 of their papers we have counts for
5 papers · 1 filter
Out-of-equilibrium quantum fields with conserved charge
D. J. Bedingham
We study the out-of-equilibrium evolution of an O(2)-invariant scalar field in which a conserved charge is stored. We apply a loop expansion of the 2-particle irreducible effective…
Bose-Einstein condensation in the canonical ensemble
D. J. Bedingham
Large-volume, high-temperature Bose-Einstein condensation is illustrated for a relativistic O(2)-invariant scalar field with fixed charge using the canonical ensemble. The standard…
Quantum field dynamics of the slow rollover in the linear delta expansion
D. J. Bedingham, H. F. Jones
We show how the linear delta expansion, as applied to the slow-roll transition in quantum mechanics, can be recast in the closed time-path formalism. This results in simpler, expli…
The Effect of Weak Interactions on the Ultra-Relativistic Bose-Einstein Condensation Temperature
D. J. Bedingham, T. S. Evans
We calculate the ultra-relativistic Bose-Einstein condensation temperature of a complex scalar field with weak lambda Phi^4 interaction. We show that at high temperature and finite…
Dimensional Regularization and Mellin Summation in High-Temperature Calculations
D. J. Bedingham
A general method for calculating asymptotic expansions of infinite sums in thermal field theory is presented. It is shown that the Mellin summation method works elegantly with dime…