Pregled bibliografske jedinice broj: 29442
Vertex-corrected perturbation theory for the electron-phonon problem with nonconstant density of states
Vertex-corrected perturbation theory for the electron-phonon problem with nonconstant density of states // Physical review. B, Condensed matter and materials physics, 58 (1998), 17; 11613-11623 doi:10.1103/PhysRevB.58.11613 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 29442 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Vertex-corrected perturbation theory for the electron-phonon problem with nonconstant density of states
Autori
Freericks, Jim K. ; Zlatić, Veljko ; Chung, Woonki K. ; Jarrell, Mark
Izvornik
Physical review. B, Condensed matter and materials physics (1098-0121) 58
(1998), 17;
11613-11623
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
weak-coupling theory ; Hubbard-model ; infinite dimensions ; Monte-Carlo ; superconductors ; Holstein ; fermions
Sažetak
A series of weak-coupling perturbation theories that include the lowest-order vertex corrections are applied to the attractive Holstein model in infinite dimensions. The approximations are chosen to reproduce the iterated perturbation theory in the limit of half-filling and large phonon frequency (where the Holstein model maps onto the Hubbard model). Comparison is made with quantum Monte Carlo solutions to test the accuracy of different approximation schemes.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
