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The Fermi-Hubbard model at unitarity | Evgeni Burovski
; Nikolay Prokof’ev
; Boris Svistunov
; Matthias Troyer
; | Date: |
12 May 2006 | Subject: | Superconductivity; Statistical Mechanics | Abstract: | We simulate the dilute attractive Fermi-Hubbard model in the unitarity regime using a diagrammatic determinant Monte Carlo algorithm with worm-type updates. We obtain the dependence of the critical temperature on the filling factor $
u$ and, by extrapolating to $
u o 0$, determine the universal critical temperature of the continuum unitary Fermi gas in units of Fermi energy: $T_c/epsilon_F=0.152(7)$. We also determine the thermodynamic functions and show how the Monte Carlo results can be used for accurate thermometry of a trapped unitary gas. | Source: | arXiv, cond-mat/0605350 | Services: | Forum | Review | PDF | Favorites |
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