منابع مشابه
Heterotic Coset Models
A description is given of how to construct (0, 2) supersymmetric conformal field theories as coset models. These models may be used as non–trivial backgrounds for Heterotic String Theory. They are realised as a combination of an anomalously gauged Wess–Zumino–Witten model, right–moving supersymmetric fermions, and left–moving current algebra fermions. Requiring the sum of the gauge anomalies fr...
متن کاملHeterotic Coset Models of Microscopic Strings and Black Holes
Following a recent conjecture by Lapan, Simons and Strominger, we revisit and discuss an intrinsically heterotic class of conformal field theories, emphasizing their Lagrangian construction as asymmetrically gauged WZW models, which may be useful in several applications to the study of supersymmetric strings and black holes in heterotic and type II string theory compactified on T 6 and K3 × T 2...
متن کاملReducing the Heterotic Supergravity on nearly-Kähler coset spaces
We study the dimensional reduction of the N = 1, ten-dimensional Heterotic Supergravity to four dimensions, at leading order in α′, when the internal space is a coset manifold. Then we apply the formalism using as internal manifolds all possible six-dimensional nonsymmetric coset spaces, namely G2/SU(3), Sp4/(SU(2)× U(1))non−max and SU(3)/U(1)× U(1), which moreover are nearly-Kähler manifolds a...
متن کاملHeterotic string solutions and coset conformal field theories
Abstract We discuss solutions of the heterotic string theory which are analogous to bosonic and superstring backgrounds related to coset conformal field theories. A class of exact ‘left-right symmetric’ solutions is obtained by supplementing the metric, antisymmetric tensor and dilaton of the superstring solutions by the gauge field background equal to the generalised Lorentz connection with to...
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...
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ژورنال
عنوان ژورنال: Modern Physics Letters A
سال: 1995
ISSN: 0217-7323,1793-6632
DOI: 10.1142/s0217732395000582