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Density-functional theory for fermions in the unitary regime
T. Papenbrock
In the unitary regime, fermions interact strongly via two-body potentials that exhibit a zero range and a (negative) infinite scattering length. The energy density is proportional…
Ground-state properties of hard core bosons in one-dimensional harmonic traps
T. Papenbrock
The one-particle density matrices for hard core bosons in a one-dimensional harmonic trap are computed numerically for systems with up to 160 bosons. Diagonalization of the density…
On phases in weakly interacting finite Bose systems
D. J. Dean, T. Papenbrock
We study precursors of thermal phase transitions in finite systems of interacting Bose gases. For weakly repulsive interactions there is a phase transition to the one-vortex state.…
Rate Equations for Sympathetic Cooling of Trapped Bosons or Fermions
T. Papenbrock, A. N. Salgueiro, H. A. Weidenmueller
We derive two different sets of rate equations for sympathetic cooling of harmonically trapped Bosons or Fermions. The rate equations are obtained from a master equation derived ea…
Sympathetic cooling and growth of a Bose-Einstein condensate
T. Papenbrock, A. N. Salgueiro, H. A. Weidenmueller
We study two sets of rate equations for sympathetic cooling of harmonically trapped Bose gases. Calculations for mixtures of Na-Rb and Li-Cs show that both sets yield similar resul…