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arXiv · 0805.3047

Critical Temperature Curve in the BEC-BCS Crossover

Evgeni Burovski·Evgeny Kozik·Nikolay Prokof'ev·Boris Svistunov·Matthias Troyer
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Abstract

The strongly-correlated regime of the BCS-BEC crossover can be realized by diluting a system of two-component fermions with a short-range attractive interaction. We investigate this system via a novel continuous-space-time diagrammatic determinant Monte Carlo method and determine the universal curve $T_c/ε_F$ for the transition temperature between the normal and the superfluid states as a function of the scattering length with the maximum on the BEC side. At unitarity, we confirm that $T_c/ε_F = 0.152(7)$.

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Evgeni Burovski, Evgeny Kozik, Nikolay Prokof'ev, Boris Svistunov, Matthias Troyer. 2008-09-04. Critical Temperature Curve in the BEC-BCS Crossover. https://doi.org/10.1103/physrevlett.101.090402

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