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Titolo:
Dual Ginzburg-Landau theory for confinement and chiral symmetry breaking
Autore:
Toki, H; Suganuma, H;
Indirizzi:
Osaka Univ, Nucl Phys Res Ctr, Ibaraki, Osaka 5670047, Japan Osaka Univ Ibaraki Osaka Japan 5670047 Ctr, Ibaraki, Osaka 5670047, Japan
Titolo Testata:
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 45, SUPPLEMENT 2
, volume: 45, anno: 2000,
parte:, S2
pagine: S397 - S472
SICI:
0146-6410(2000)45:<S397:DGTFCA>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
LATTICE GAUGE-THEORY; MAXIMALLY ABELIAN GAUGE; QUANTUM FIELD-THEORY; DYSON-SCHWINGER EQUATIONS; QCD PHASE-TRANSITION; YANG-MILLS THEORY; SU(2) LATTICE; FINITE-TEMPERATURE; QUARK CONFINEMENT; FLUX-TUBE;
Keywords:
dual Ginzburg-Landau theory; color monopole; confinement; chiral symmetry breaking; QCD phase transition; Abelian dominance; lattice QCD; instanton;
Tipo documento:
Article
Natura:
Collana
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
170
Recensione:
Indirizzi per estratti:
Indirizzo: Toki, H Osaka Univ, Nucl Phys Res Ctr, Ibaraki, Osaka 5670047, Japan OsakaUniv Ibaraki Osaka Japan 5670047 raki, Osaka 5670047, Japan
Citazione:
H. Toki e H. Suganuma, "Dual Ginzburg-Landau theory for confinement and chiral symmetry breaking", PROG PART N, 45, 2000, pp. S397-S472

Abstract

We introduce the dual Ginzburg-Landau (DGL) theory as a low energy effective theory of QCD We study color confinement and dynamical chiral symmetry breaking of nonperturbative QCD by using the DGL theory, where color monopole and its condensation play an essential role on the nonperturbative dynamics in the infrared region. As a result of the dual Meissner effect, the linear static quark potential, which characterizes the quark confinement, is obtained in the long distance. We investigate then the dynamical chiral symmetry breaking by using the Schwinger-Dyson equation, where the gluon propagator includes the nonperturbative effect related to monopole condensation. We find a large enhancement of the chiral-symmetry breaking when the dual Meissner effect takes place. We study the recovery of the chiral symmetry and the deconfinement at finite temperature in the DGL theory. We discuss then the essential assumption of the DGL theory, which is the abelian dominance for the infrared physics, in the maximal abelian (MA) gauge in lattice QCD. The lattice QCD simulation demonstrates that the non-abelian gluons havea finite mass of order of I GeV in the MA gauge. We introduce further the instanton configuration as the source of the color monopole. In the MA gauge, a monopole circles around an instanton and with the increase of the instanton density, the monopole loop connects many instantons and a complicatedmonopole loop covers the whole 4 dimensional space. This study indicates that instantons may be playing an essential role even for color confinement.

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Documento generato il 03/04/20 alle ore 20:38:18