Quantitative comparison between theoretical predictions and experimental results for the BCS-BEC crossover

Phys Rev Lett. 2004 Sep 3;93(10):100404. doi: 10.1103/PhysRevLett.93.100404. Epub 2004 Sep 3.

Abstract

Theoretical predictions for the Bardeen-Cooper-Schrieffer-Bose-Einstein condensation crossover of trapped Fermi atoms are compared with recent experimental results for the density profiles of 6Li. The calculations rest on a single theoretical approach that includes pairing fluctuations beyond mean-field. Excellent agreement with experimental results is obtained. Theoretical predictions for the zero-temperature chemical potential and gap at the unitarity limit are also found to compare extremely well with Quantum Monte Carlo simulations and with recent experimental results.