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hep-ph2003
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…
hep-ph2003
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…