Superstrings and WZNW Models
نویسندگان
چکیده
In a series of papers [1] we have presented a new approach to the old problem of the covariant quantization of the superstring. The fields of the classical superstring are x(z, z̄) and two (i=1,2) spacetime spinors θ(z, z̄) where m = 0, . . . , 9 is a vector index and α = 1, . . . , 16 the index of a real chiral spinor. A natural choice as action might seem to be the supersymmetric line element S1 = − 1 2 ∫
منابع مشابه
The Quantum Superstring as a WZNW Model
We present a new development in our approach to the covariant quantization of superstrings in 10 dimensions which is based on a gauged WZNW model. The WZNW action reduces to our earlier free-field quantum action after a field redefinition, and to the GreenSchwarz classical action after constraining the current in Berkovits’ BRST charge to vanish. Physical states form the cohomology of a BRST ch...
متن کاملThe Quantum Superstring as a WZNW Model with N=2 Superconformal Symmetry
We present a new development in our approach to the covariant quantization of superstrings in 10 dimensions which is based on a gauged WZNW model. To incorporate worldsheet diffeomorphisms we need the quartet of ghosts (bzz, c , βzz, γ ) for topological gravity. The currents of this combined system form an N = 2 superconformal algebra. The model has vanishing central charge and contains two ant...
متن کاملA Duality-like Transformation in Wznw Models Inspired from Dual Riemannian Globally Symmetric Spaces
We investigate transformations on the group manifold element and gauged elds on two diierent kinds of gauged WZNW models and in this way obtain a duality-like transformation between chiral and vector gauged WZNW models with null gauged subgroups, that exactly converts the chiral gauged WZNW action to vector gauged WZNW action and vice versa. These duality-like transformations correspond to the ...
متن کاملMARGINAL DEFORMATIONS OF WZNW AND COSET MODELS FROM O ( d , d ) TRANSFORMATION
We show that O(2, 2) transformation of SU(2) WZNW model gives rise to marginal deformation of this model by the operator d 2 zJ(z) ¯ J (¯ z) where J, ¯ J are U(1) currents in the Cartan subalgebra. Generalization of this result to other WZNW theories is discussed. We also consider O(3, 3) transformation of the product of an SU(2) WZNW model and a gauged SU(2) WZNW model. The three parameter set...
متن کاملOn the Lagrangian Realization of the WZNW Reductions
We develop a phase space path-integral approach for deriving the Lagrangian realization of the models defined by Hamiltonian reduction of the WZNW theory. We illustrate the uses of the approach by applying it to the models of non-Abelian chiral bosons, W -algebras and the GKO coset construction, and show that the well-known Sonnenschein’s action, the generalized Toda action and the gauged WZNW ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004