Adiabatic Phase Diagram on Degenerate Fermi Gas with Feshbach-Resonance

Abstract

We determine the adiabatic phase diagrams for a resonantly-coupled system of Fermi atoms and Bose molecules confined in a harmonic trap by using the local density approximation. The key idea of our work is conservation of entropy through the adiabatic process. We also calculate the molecular conversion efficiency as a function of the initial temperature. Our work helps to understand recent experiments on the BCS-BEC crossover, in terms of the initial temperature measured before a sweep of the magnetic field.

arXiv comment6 pages, 7 figures, submitted to Quantum Fluids and Solids Conference (QFS 2006)

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