Article
Tduality in Affine NA Toda Models
Instituto de Física Teórica  IFT/UNESP Rua Pamplona
Czechoslovak Journal of Physics (Impact Factor: 0.42). 10/2004; 54(11):12811287. DOI: 10.1007/s1058200497902 Source: arXiv
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Article: Dyonic integrable models
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ABSTRACT: A class of nonabelian affine Toda models arising from the axial gauged twoloop WZW model is presented. Their zero curvature representation is constructed in terms of a graded Kac–Moody algebra. It is shown that the discrete multivacua structure of the potential together with nonabelian nature of the zero grade subalgebra allows soliton solutions with nontrivial electric and topological charges. The dressing transformation is employed to explicitly construct one and two soliton solutions and their bound states in terms of the tau functions. A discussion of the classical spectra of such solutions and the time delays are given in detail.Nuclear Physics B 11/2000; · 4.33 Impact Factor  [Show abstract] [Hide abstract]
ABSTRACT: A general construction of affine nonabelian (NA)Toda models in terms of the axial and vector gauged two loop WZNW model is discussed. They represent integrable perturbations of the conformal σmodels (with tachyons included) describing (charged) black hole type string backgrounds. We study the offcritical Tduality between certain families of axial and vector type integrable models for the case of affine NAToda theories with one global U(1) symmetry. In particular we find the Lie algebraic condition defining a subclass of Tselfdual torsionless NAToda models and their zero curvature representation.Annals of Physics 07/2000; · 3.32 Impact Factor  B479 (1996) 594 6A Czech..
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