The Fermi-Hubbard model at unitarity
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Date
2006-08
Publication Type
Journal Article
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Abstract
We simulate the dilute attractive Fermi–Hubbard model in the unitarity regime using a diagrammatic determinant Monte Carlo (MC) algorithm with worm-type updates. We obtain the dependence of the critical temperature on the filling factor ν and, by extrapolating to ν → 0, determine the universal critical temperature of the continuum unitary Fermi gas in units of Fermi energy: Tc/εF = 0.152(7). We also determine the thermodynamic functions and show how the MC results can be used for accurate thermometry of a trapped unitary gas.
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published
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8
Pages / Article No.
153
Publisher
IOP Publishing
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03622 - Troyer, Matthias (ehemalig) / Troyer, Matthias (former)