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28 March 2024
 
  » arxiv » cond-mat/0602224

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Critical Temperature and Thermodynamics of Attractive Fermions at Unitarity
Evgeni Burovski ; Nikolay Prokof’ev ; Boris Svistunov ; Matthias Troyer ;
Date 9 Feb 2006
Subject Statistical Mechanics; Superconductivity
AbstractThe unitarity regime of the BCS-BEC crossover can be realized by diluting a system of two-component lattice fermions with an on-site attractive interaction. We perform a systematic-error-free finite-temperature simulations of this system by diagrammatic determinant Monte Carlo. The critical temperature in units of Fermi energy is found to be T_c / E_F = 0.152(7). We also report the behavior of the thermodynamic functions, and discuss the issues of thermometry of ultracold Fermi gases.
Source arXiv, cond-mat/0602224
Other source [GID 959035] pmid16712207
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