Comparison between a diagrammatic theory for the BCS-BEC crossover and Quantum Monte Carlo results

Details Comparison between a diagrammatic theory for the BCS-BEC crossover and Quantum Monte Carlo results Comparison between a diagrammatic theory for the BCS-BEC crossover and Quantum Monte Carlo results

2004-10-22

arxiv.org/abs/cond-mat/0410578v1

Phys. Rev. B 72, 012506 (2005)

Physics

Condensed Matter

Superconductivity

3 pages, 2 figures

Scientific paper

10.1103/PhysRevB.72.012506

Predictions for the chemical potential and the excitation gap recently
obtained by our diagrammatic theory for the BCS-BEC crossover in the superfluid
phase are compared with novel Quantum Monte Carlo results at zero temperature
now available in the literature. A remarkable agreement is found between the
results obtained by the two approaches

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