期刊
PHYSICAL REVIEW B
卷 87, 期 20, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.205102
关键词
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资金
- Fellowship for Advanced Researchers by the Swiss National Science Foundation
- AFOSR [FA9550-11-1-0313]
- DARPA-YFA [N66001-11-1-4122]
We study the thermodynamics of the three-dimensional Hubbard model at half filling on approach to the Neel transition by means of large-scale unbiased diagrammatic determinant Monte Carlo simulations. We obtain the transition temperature in the strongly correlated regime, as well as the temperature dependence of the energy, entropy, double occupancy, and nearest-neighbor spin correlation function. Our results improve the accuracy of previous unbiased studies and present accurate benchmarks in the ongoing effort to realize the antiferromagnetic state of matter with ultracold atoms in optical lattices.
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