7 citations · 12 across the 4 of their papers we have counts for
7 papers
Phase fluctuations in low-dimensional Gross-Neveu models
Jens O. Andersen
We consider the Gross-Neveu model with a continuous chiral symmetry in two and three spacetime dimensions at zero and finite temperature. In order to study long-range phase coheren…
Relativistic Bose gases at finite density
Jens O. Andersen
We consider a massive relativistic Bose gas with complex scalars at finite density. At zero temperature, we calculate the pressure, charge density and the speed of sound in the…
Effective Field Theory for Goldstone Bosons in Nonrelativistic Superfluids
Jens O. Andersen
We consider nonrelativistic superfluids where the global U(1)-symmetry is spontaneously broken. At sufficiently long wavelengths, the relevant degree of freedom is the massless Gol…
Erratum: Low-dimensional Bose gases (PRA 66, 013615 (2002))
U. Al Khawaja, J. O. Andersen, N. P. Proukakis +1
We discuss some subtleties regarding the depletion of the condensate in homogeneous two and three-dimensional Bose at zero temperature. We find agreement with the results of Popov…
Thermal Field Theory in Equilibrium
Jens O. Andersen
In this talk, I review recent developments in equilibrium thermal field theory. Screened perturbation theory and hard-thermal-loop perturbation theory are discussed. A self-consist…
On Effective Field Theories at Finite Temperature
J. O. Andersen
Chapter one is devoted to a study of fermions and bosons in two spatial dimensions in external electromagnetic fields. The effectve action is calculated by integrating out the matt…