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Titolo:
Lattice instanton action from 3D SU(2) Georgi-Glashow model
Autore:
Yazawa, T; Suzuki, T;
Indirizzi:
Kanazawa Univ, Inst Theoret Phys, Kanazawa, Ishikawa 9201192, Japan Kanazawa Univ Kanazawa Ishikawa Japan 9201192 wa, Ishikawa 9201192, Japan
Titolo Testata:
JOURNAL OF HIGH ENERGY PHYSICS
fascicolo: 4, volume: 2001, anno: 2001,
pagine: NIL_659 - NIL_686
SICI:
1029-8479(200104)2001:4<NIL_659:LIAF3S>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
RENORMALIZED COUPLING PARAMETERS; MONTE-CARLO CALCULATION; QUARK CONFINEMENT; MONOPOLE ACTION; GAUGE THEORIES; QCD;
Keywords:
solitons monopoles and instantons; confinement; lattice gauge field theories;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Yazawa, T Kanazawa Univ, Inst Theoret Phys, Kanazawa, Ishikawa 9201192, Japan Kanazawa Univ Kanazawa Ishikawa Japan 9201192 wa 9201192, Japan
Citazione:
T. Yazawa e T. Suzuki, "Lattice instanton action from 3D SU(2) Georgi-Glashow model", J HIGH EN P, 2001(4), 2001, pp. NIL_659-NIL_686

Abstract

3D Georgi-Glashow model is studied on the lattice in the London limit in an infrared but an intermediate region before the screening appears. Abelianand instanton dominances are observed after abelian projections in a unitary gauge and roughly in the maximally abelian gauge. Using an inverse Monte-Carlo method, we determine an effective instanton action in both gauges. When we restrict ourselves to some regions of parameters beta and kappa, we obtain an almost perfect instanton action, performing a block-spin transformation on the dual lattice. It takes a form of a Coulomb gas and reproducesfairly well the string tension obtained analytically by Polyakov. The almost perfect actions in both gauges look the same in the infrared region, which suggests gauge independence.

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Documento generato il 18/02/20 alle ore 04:33:59