Physics – Condensed Matter
Scientific paper
2002-11-04
Phys. Rev. A 67, 063606 (2003)
Physics
Condensed Matter
6 pages, 4 figures (final version as published in Physical Review A
Scientific paper
10.1103/PhysRevA.67.063606
We introduce Density Functional Theory for inhomogeneous Bose-Fermi mixtures, derive the associated Kohn-Sham equations, and determine the exchange-correlation energy in local density approximation. We solve numerically the Kohn-Sham system and determine the boson and fermion density distributions and the ground-state energy of a trapped, dilute mixture beyond mean-field approximation. The importance of the corrections due to exchange--correlation is discussed by comparison with current experiments; in particular, we investigate the effect of of the repulsive potential energy contribution due to exchange--correlation on the stability of the mixture against collapse.
Albus Alexander P.
Illuminati Fabrizio
Wilkens Martin
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