4 papers · 1 filter
Asymptotic Space-Time Behavior of HTL Gauge Propagator
H. Arthur Weldon
The asymptotic behavior as t\to\infty and r\to\infty of the hard-thermal-loop propagator D^{μν}(t,r) is computed in the Coulomb gauge. The asymptotic falloff is always a power law…
New Mesons in the Chirally Symmetric Plasma
H. Arthur Weldon
A nonperturbative proof is given that the chirally-invariant quark propagator contains both particle and hole singularities with different dispersion relations. Mesons made of a qu…
Quasiparticles in Finite-Temperature Field Theory
H. Arthur Weldon
Conventional finite-temperature perturbation theory in which propagators have poles at is shown to break down at the two-loop level for self-interacting scalar fields…
Cancellation of Infrared Divergences in QED at Nonzero Temperature
H. Arthur Weldon
The radiation produced by a classical charged current coupled to a quantized is first computed. To each order in , all infrared divergences cancel between the virtual '…