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pro vyhledávání: '"Haugset, T."'
Autor:
Haugset, T., Haugerud, H.
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 Hamiltonian we determine the low lying excitation energies and the ground state
Externí odkaz:
http://arxiv.org/abs/cond-mat/9707107
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 renormalization and at zero temperature it reproduces the standard gro
Externí odkaz:
http://arxiv.org/abs/cond-mat/9706088
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 specific heat is calculated using the Euler-Maclaurin approximation. For a
Externí odkaz:
http://arxiv.org/abs/cond-mat/9611061
Using the Euler-Maclaurin summation we calculate analytically the internal energy for non-interacting bosons confined within a harmonic oscillator potential. The specific heat shows a sharp $\lambda$-like peak indicating a condensation into the groun
Externí odkaz:
http://arxiv.org/abs/cond-mat/9605100
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 the second, for which the signs are opposite. This results in the sam
Externí odkaz:
http://arxiv.org/abs/hep-th/9408011
Autor:
Haugset, T., Ravndal, F.
Publikováno v:
Phys.Rev. D49 (1994) 4299-4301
{}From the one-loop effective potential for a gas of non-relativistic bosons in two spatial dimensions interacting via a delta-function potential at zero-temperature and finite chemical potential, the anomaly of the energy-momentum tensor follows dir
Externí odkaz:
http://arxiv.org/abs/hep-th/9307034
Publikováno v:
Annals of Physics; June 1998, Vol. 266 Issue: 1 p27-62, 36p
Publikováno v:
Physics Letters A; 1997, Vol. 225 Issue: 1 p18-22, 5p
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