منابع مشابه
Duality in deformed coset fermionic models
We study the SU(2)k/U(1)-parafermion model perturbed by its first thermal operator. By formulating the theory in terms of a (perturbed) fermionic coset model we show that the model is equivalent to interacting WZW fields modulo free fields. In this scheme, the order and disorder operators of the Zk parafermion theory are constructed as gauge invariant composites. We find that the theory present...
متن کاملFermionic Coset Models as Topological Models
By considering the fermionic realization of G/H coset models, we show that the partition function for the U(1)/U(1) model defines a Topological Quantum Field Theory and coincides with that for a 2dimensional Abelian BF system. In the non-Abelian case, we prove the topological character of G/G coset models by explicit computation, also finding a natural extension of 2-dimensional BF systems with...
متن کاملT-Duality for Coset Models
We construct dual Lagrangians for G/H models in two space-time dimensions for arbitrary Lie groups G and H ⊂ G. Our approach does not require choosing coordinates on G/H, and allows for a natural generalization to Lie-Poisson duality. For the case where the target metric on G/H is induced from the invariant metric on G, the dual system is a gauged Higgs model, with a nonconstant metric and a co...
متن کاملDeformed Coset Models From Gauged WZW Actions
A general Lagrangian formulation of integrably deformed G/H-coset models is given. We consider the G/H-coset model in terms of the gauged Wess-Zumino-Witten action and obtain an integrable deformation by adding a potential energy term Tr(gTgT̄ ), where algebra elements T, T̄ belong to the center of the algebra h associated with the subgroup H. We show that the classical equation of motion of the ...
متن کاملFermionic Coset Realization of Primaries in Critical Statistical Models
We obtain a fermionic coset realization of the primaries of minimal unitary models and show how their four-point functions may be calculated by the use of a reduction formula. We illustrate the construction for the Ising model, where we obtain an explicit realization of the energy operator, Onsager fermions, as well as of the order and disorder operators realizing the dual algebra, in terms of ...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1996
ISSN: 0550-3213
DOI: 10.1016/0550-3213(96)00329-x