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- W2034949934 abstract "We study the finite temperature properties of two-component fermionic atoms trapped in a two-dimensional optical lattice. We apply the self-energy functional approach to the two-dimensional Hubbard model with a harmonic trapping potential, and systematically investigate the thermodynamic properties of this system. We find that entropy and grand potential provide evidence of a crossover between the Mott insulating and metallic phases at certain temperatures. In addition, we find that entropy exhibits a cusp-like anomaly at lower temperatures, suggesting a second or higher order antiferromagnetic transition. We estimate the antiferromagnetic transition temperatures, and clarify how the trapping potential affects this magnetic transition." @default.
- W2034949934 created "2016-06-24" @default.
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- W2034949934 date "2010-06-09" @default.
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- W2034949934 title "Thermodynamic properties of two-component fermionic atoms trapped in a two-dimensional optical lattice" @default.
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- W2034949934 doi "https://doi.org/10.1103/physreva.81.063615" @default.
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