Pregled bibliografske jedinice broj: 978012
Angle-resolved loss of Landau quasiparticles in 2D Hubbard model
Angle-resolved loss of Landau quasiparticles in 2D Hubbard model // Europhysics Letters (EPL), 55 (2001), 3; 376-382 doi:10.1209/epl/i2001-00413-7 (međunarodna recenzija, članak, znanstveni)
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Naslov
Angle-resolved loss of Landau quasiparticles in 2D Hubbard model
Autori
Zanchi, D
Izvornik
Europhysics Letters (EPL) (0295-5075) 55
(2001), 3;
376-382
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
RENORMALIZATION-GROUP APPROACH ; T-C SUPERCONDUCTORS ; FLAT FERMI-SURFACE ; SCATTERING ; SYSTEMS ; GAP
Sažetak
The problem of weakly correlated electrons on a square lattice is studied theoretically. A simple renormalization group scheme for the angle-resolved weight Z (theta) of the quasiparticles at the Fermi surface is presented and applied to the Hubbard model. Upon reduction of the cutoff, the Fermi surface is progressively destroyed rom the van Hove points toward the zone diagonals. Due to the renormalized Z (theta), divergences of both antiferromagnetic and superconducting correlation functions are suppressed at the critical scale where interactions diverge.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
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
