Twocomponent Fermi Gas in a Harmonic Trap
Abstract
We consider a mixture of twocomponent Fermi gases at low temperature. The density profile of this degenerate Fermi gas is calculated under the semiclassical approximation. The results show that the fermionfermion interactions make a large correction to the density profile at low temperature. The phase separation of such a mixture is also discussed for both attractive and repulsive interatomic interactions, and the numerical calculations demonstrate the existance of a stable temperature region T c1 <T<T c2 for the mixture. In addition, we give the critical temperature of the BCStype transition in this system beyond the semiclassical approximation.
 Publication:

Physica Scripta
 Pub Date:
 2002
 DOI:
 10.1238/Physica.Regular.066a00284
 arXiv:
 arXiv:quantph/0305133
 Bibcode:
 2002PhyS...66..284Y
 Keywords:

 03.75.Fi;
 67.40.w;
 32.80.Pj;
 42.50Vk;
 Quantum Physics
 EPrint:
 6 pages, 1 figure