Journal
EPL
Volume 90, Issue 1, Pages -Publisher
EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
DOI: 10.1209/0295-5075/90/10004
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Funding
- FWO-Vlaanderen
- Swiss National Science Foundation
- NSF [PHY-0653183, DMR-0705847]
- DARPA
- Aspen Center for Physics
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We show that Monte Carlo sampling of the Feynman diagrammatic series (DiagMC) can be used for tackling hard fermionic quantum many-body problems in the thermodynamic limit by presenting accurate results for the repulsive Hubbard model in the correlated Fermi liquid regime. Sampling Feynman's diagrammatic series for the single-particle self-energy, we can study moderate values of the on-site repulsion (U/t similar to 4) and temperatures down to T/t = 1/40. We compare our results with high-temperature series expansions and with single-site and cluster dynamical mean-field theory. Copyright (C) EPLA, 2010
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