60 citations · 91 across the 2 of their papers we have counts for
7 papers
Exact Diagonalization of the Hamiltonian for Trapped Interacting Bosons
T. Haugset, H. Haugerud
We consider systems of a small number of interacting bosons confined to harmonic potentials in one and two dimensions. By exact numerical diagonalization of the many-body Hamiltoni…
Thermodynamics of a weakly interacting Bose-Einstein gas
T. Haugset, H. Haugerud, F. Ravndal
The one-loop effective potential for non-relativistic bosons with a delta function repulsive potential is calculated for a given chemical potential using functional methods. After…
Bose-Einstein Condensation in Anisotropic Harmonic Traps
T. Haugset, H. Haugerud, J. O. Andersen
We study the thermodynamic behaviour of an ideal gas of bosons trapped in a three-dimensional anisotropic harmonic oscillator potential. The condensate fraction as well as the spec…
A more accurate analysis of Bose-Einstein condensation in harmonic traps
H. Haugerud, T. Haugset, F. Ravndal
Using the Euler-Maclaurin summation we calculate analytically the internal energy for non-interacting bosons confined within a harmonic oscillator potential. The specific heat show…
Magnetization in 2+1 dimensional QED at Finite Temperature and Density
Jens O. Andersen, Tor Haugset
We consider Dirac fermions moving in a plane with a static homogeneous magnetic field orthogonal to the plane. We calculate the effective action at finite temperature and density.…
Ideal quantum gases in two dimensions
S. Viefers, F. Ravndal, T. Haugset
Thermodynamic properties of non-relativistic bosons and fermions in two spatial dimensions and without interactions are derived. All the virial coefficients are the same except for…