Pregled bibliografske jedinice broj: 22725
Unusual perturbation methods for strongly correlated electron systems
Unusual perturbation methods for strongly correlated electron systems // Journal of magnetism and magnetic materials, 177 (1998), 1; 323-324 doi:0.1016/S0304-8853(97)00687-2 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 22725 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Unusual perturbation methods for strongly correlated electron systems
Autori
Keiter, Hellmut ; Kilić, Srećko
Izvornik
Journal of magnetism and magnetic materials (0304-8853) 177
(1998), 1;
323-324
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Anderson model; heavy-fermion systems; Kondo effect; thermodynamics
Sažetak
We suggest that Pauli-principle violations, which automatically occur within approximations in many body calculations for strongly correlated electron systems, are the cause for well known pathologies at low temperatures. As an example, the (1/N) expansion, where N denotes the degree of degeneracy of the f-level in Anderson model, is carried out without Pauli-principle violations. The preliminary result shows that the energy shifts due to the hybridization, which are characteristic for slave boson mean-field theories, are contained in the present approach.
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
