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Pregled bibliografske jedinice broj: 29442

Vertex-corrected perturbation theory for the electron-phonon problem with nonconstant density of states


Freericks, Jim K.; Zlatić, Veljko; Chung, W. K.; Jarrell, Mark
Vertex-corrected perturbation theory for the electron-phonon problem with nonconstant density of states // Physical review B : condensed matter, 58 (1998), 17; 11613-11623 (međunarodna recenzija, članak, znanstveni)


Naslov
Vertex-corrected perturbation theory for the electron-phonon problem with nonconstant density of states

Autori
Freericks, Jim K. ; Zlatić, Veljko ; Chung, W. K. ; Jarrell, Mark

Izvornik
Physical review B : condensed matter (0163-1829) 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


Projekt / tema
00350105

Ustanove
Institut za fiziku, Zagreb

Autor s matičnim brojem:
Veljko Zlatić, (54915)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI