Non-Abelian bosonization: stress-energy correlation functions

We demonstrate that, in 1+1 dimensions, the effective action produced by massless fermions moving in external gravitational and gauge fields is identical with that produced by a suitably defined sigma model which includes a Wess-Zumino term. This equivalence holds provided that the two models have t...

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Veröffentlicht in:	Phys. Rev. D; (United States) 1987-07, Vol.36 (2), p.551-561
Hauptverfasser:	BROWN, L. S, GOLBERG, G. J, RIM, C. P, NEPOMECHIE, R. I
Format:	Artikel
Sprache:	eng
Schlagworte:	645400 - High Energy Physics- Field Theory BOSON EXPANSION CORRELATION FUNCTIONS ELEMENTARY PARTICLES Exact sciences and technology FERMIONS FUNCTIONS GAUGE INVARIANCE General relativity and gravitation GRAVITATIONAL FIELDS INVARIANCE PRINCIPLES MASSLESS PARTICLES MATHEMATICAL MODELS METRICS PARTICLE MODELS Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Quantum gravity RENORMALIZATION SIGMA MODEL SPACE-TIME SPINORS TWO-DIMENSIONAL CALCULATIONS
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Beschreibung
Zusammenfassung:	We demonstrate that, in 1+1 dimensions, the effective action produced by massless fermions moving in external gravitational and gauge fields is identical with that produced by a suitably defined sigma model which includes a Wess-Zumino term. This equivalence holds provided that the two models have the same conformal anomaly, a condition that we investigate in detail.
ISSN:	0556-2821 1089-4918
DOI:	10.1103/PhysRevD.36.551