Manipulating the critical temperature for the superfluid phase transition in trapped atomic Fermi gases

Details Manipulating the critical temperature for the superfluid phase transition in trapped atomic Fermi gases Manipulating the critical temperature for the superfluid phase transition in trapped atomic Fermi gases

2001-11-29

arxiv.org/abs/cond-mat/0111548v1

Physics

Condensed Matter

Superconductivity

4 pages

Scientific paper

10.1103/PhysRevA.65.063616

We examine the effect of the trapping potential on the critical temperature, $T_C$, for the BCS transition to a superfluid state in trapped atomic gases of fermions. $T_C$ for an arbitrary power law trap is calculated in the Thomas-Fermi approximation. For anharmonic traps, $T_C$ can be increased by several orders of magnitude in comparison to a harmonic trap. Our theoretical results indicate that, in practice, one could manipulate the critical temperature for the BCS phase transition by shaping the traps confining the atomic Fermi gases.

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