52 citations · 114 across the 6 of their papers we have counts for
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hep-ph2008★ 52 cited
Four-loop screened perturbation theory
Jens O. Andersen, Lars Kyllingstad
We study the thermodynamics of massless phi-fourth theory using screened perturbation theory. In this method, the perturbative expansion is reorganized by adding and subtracting a…
hep-ph2008★ 50 cited
Linear sigma model at finite density in the 1/N expansion to next-to-leading order
Jens O. Andersen, Tomas Brauner
We study relativistic Bose-Einstein condensation at finite density and temperature using the linear sigma model in the one-particle-irreducible 1/N-expansion. We derive the effecti…