Pregled bibliografske jedinice broj: 827631
The scaling of exact and approximate Ginsparg– Wilson fermions
The scaling of exact and approximate Ginsparg– Wilson fermions // Nuclear physics. B, 570 (2000), 1-2; 423-451 doi:10.1016/S0550-3213(99)00477-0 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 827631 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
The scaling of exact and approximate Ginsparg– Wilson fermions
Autori
Bietenholz, Wolfgang ; Hip, Ivan
Izvornik
Nuclear physics. B (0550-3213) 570
(2000), 1-2;
423-451
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Lattice fermions ; Chiral symmetry ; Cutoff artifacts ; Schwinger model
Sažetak
We construct a number of lattice fermions, which fulfill the Ginsparg–Wilson relation either exactly or approximately, and test them in the framework of the 2-flavor Schwinger model. We start from explicit approximations within a short range, and study this formulation, as well as its correction to an exact Ginsparg–Wilson fermion by the “overlap formula”. Then we suggest a new method to realize this correction perturbatively, without using the tedious square root operator. In this way we combine many favorable properties: good chiral behavior, small mass renormalization, excellent scaling and rotational invariance, as well as a relatively modest computational effort, which makes such formulations most attractive for QCD.
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
