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Titolo:
Topological defects in lattice gauge theories
Autore:
Davis, AC; Kibble, TWB; Rajantie, A; Shanahan, HP;
Indirizzi:
CMS, DAMTP, Cambridge CB3 0WA, England CMS Cambridge England CB3 0WACMS, DAMTP, Cambridge CB3 0WA, England Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BW,England Univ London Imperial Coll Sci Technol & Med London England SW7 2BW gland Univ Sussex, Ctr Theoret Phys, Brighton BN1 9QJ, E Sussex, England Univ Sussex Brighton E Sussex England BN1 9QJ BN1 9QJ, E Sussex, England Univ Tsukuba, Ctr Computat Phys, Tsukuba, Ibaraki 3058577, Japan Univ Tsukuba Tsukuba Ibaraki Japan 3058577 sukuba, Ibaraki 3058577, Japan Univ Cambridge, UK Computat Cosmol Consortium, Cambridge CB2 1TN, England Univ Cambridge Cambridge England CB2 1TN ium, Cambridge CB2 1TN, England
Titolo Testata:
JOURNAL OF HIGH ENERGY PHYSICS
fascicolo: 11, volume: 2000, anno: 2000,
pagine: NIL_197 - NIL_220
SICI:
1029-8479(200011)2000:11<NIL_197:TDILGT>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERIODIC BOUNDARY-CONDITIONS; MONTE-CARLO CALCULATIONS; MONOPOLE CONDENSATION; PHASE-TRANSITION; HIGGS-MODEL; SU(2); CONFINEMENT; INVARIANT; MECHANISM; DYNAMICS;
Keywords:
solitons monopoles and instantons; spontaneous symmetry breaking; lattice gauge field theories; cosmological phase transitions;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Davis, AC CMS, DAMTP, Wilberforce Rd, Cambridge CB3 0WA, England CMS Wilberforce Rd Cambridge England CB3 0WA e CB3 0WA, England
Citazione:
A.C. Davis et al., "Topological defects in lattice gauge theories", J HIGH EN P, 2000(11), 2000, pp. NIL_197-NIL_220

Abstract

We present a non-perturbative formalism for measuring defect free energies(monopole mass or vortex tension) in three-dimensional SU(2)+adjoint Higgsmodels. Starting from twisted, translation invariant boundary conditions, we perform a change of variables that allows us to express the defect free energies in terms of 't Hooft loops. We propose that the defect free energies can be used to distinguish between phases in this model, and also more generally in other gauge field theories where no local order parameters exist. In the case of monopoles, our construction can also be used in four-dimensional pure-gauge SU(2) theory, where it gives the monopole mass in the maximally abelian gauge without the need of actually fixing the gauge in the simulation. Moreover, the expression is manifestly independent of the choice of the abelian projection as long as it is compatible with the classical 't Hooft-Polyakov solution.

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Documento generato il 03/04/20 alle ore 04:29:39