منابع مشابه
Gauging Wess-zumino-witten Models
We review some aspects of gauged WZW models. By choosing a solvable subgroup as gauge group, one is lead to three main applications: the construction of field theories with an extended conformal symmetry, the construction of the effective action of (extended) 2D gravities and the systematic construction of string theories with some extended gauge symmetry.
متن کاملWess-Zumino-Witten model off criticality
We study the renormalization group flow properties of the WessZumino-Witten model in the region of couplings between g2 = 0 and g2 = 4π/k, by evaluating the two-loop Zamolodchikov’s c-function. We also discuss the region of negative couplings.
متن کاملWess-Zumino-Witten term on the lattice
We construct the Wess-Zumino-Witten (WZW) term in lattice gauge theory by using a Dirac operator which obeys the Ginsparg-Wilson relation. Topological properties of the WZW term known in the continuum are reproduced on the lattice as a consequence of a non-trivial topological structure of the space of admissible lattice gauge fields. In the course of this analysis, we observe that the gauge ano...
متن کاملOn Global Aspects Of Gauged Wess-Zumino-Witten Model
1 INTRODUCTION Soon after Albert Einstein has presented the general theory of relativity, Hermann Weyl made an attempt to derive the electromagnetic force as well as the grav-itational force from one common geometric structure of the space-time.[39] The starting point of his theory is to insist that there is no preferred scale structure in the universe, so that we have to choose a gauge at each...
متن کاملPresentations of Wess-zumino-witten Fusion Rings
The fusion rings of Wess-Zumino-Witten models are re-examined. Attention is drawn to the difference between fusion rings over Z (which are often of greater importance in applications) and fusion algebras over C. Complete proofs are given characterising the fusion algebras (over C) of the SU (r + 1) and Sp (2r) models in terms of the fusion potentials, and it is shown that the analagous potentia...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2017
ISSN: 1029-8479
DOI: 10.1007/jhep05(2017)057