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http://elar.urfu.ru/handle/10995/102460
Title: | From infinite to two dimensions through the functional renormalization group |
Authors: | Taranto, C. Andergassen, S. Bauer, J. Held, K. Katanin, A. Metzner, W. Rohringer, G. Toschi, A. |
Issue Date: | 2014 |
Publisher: | American Physical Society |
Citation: | From infinite to two dimensions through the functional renormalization group / C. Taranto, S. Andergassen, J. Bauer, et al. — DOI 10.1103/PhysRevLett.112.196402 // Physical Review Letters. — 2014. — Vol. 112. — Iss. 19. — 196402. |
Abstract: | We present a novel scheme for an unbiased, nonperturbative treatment of strongly correlated fermions. The proposed approach combines two of the most successful many-body methods, the dynamical mean field theory and the functional renormalization group. Physically, this allows for a systematic inclusion of nonlocal correlations via the functional renormalization group flow equations, after the local correlations are taken into account nonperturbatively by the dynamical mean field theory. To demonstrate the feasibility of the approach, we present numerical results for the two-dimensional Hubbard model at half filling. © 2014 American Physical Society. |
Keywords: | MEAN FIELD THEORY DYNAMICAL MEAN-FIELD THEORY FUNCTIONAL RENORMALIZATION GROUP LOCAL CORRELATIONS NONLOCAL CORRELATIONS NONPERTURBATIVE TREATMENT NUMERICAL RESULTS STRONGLY CORRELATED FERMIONS TWO-DIMENSION STATISTICAL MECHANICS |
URI: | http://elar.urfu.ru/handle/10995/102460 |
Access: | info:eu-repo/semantics/openAccess |
SCOPUS ID: | 84901044839 |
WOS ID: | 000335928800017 |
PURE ID: | bc64214c-9d6b-4403-b5ba-195f936341f2 388013 |
ISSN: | 319007 |
DOI: | 10.1103/PhysRevLett.112.196402 |
Appears in Collections: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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