String Hypothesis and Characters of Coset CFTs
نویسنده
چکیده
We present an algorithm for the construction of the branching functions in the vacuum sector for affine Lie algebras based on the string hypothesis solution to a system of Bethe equations for generalized RSOS models. We also mention how the ground state structure and features of the excitation spectra like the Brillouin zone schemes of these models (and those in the same universality classes) can be extracted from combinatoric arguments and encoded in Lie algebraic terms.
منابع مشابه
Crystalline Spinon Basis for RSOS Models
The crystalline spinon basis for the RSOS models associated with ŝl2 is studied. This basis gives fermionic type character formulas for the branching coefficients of the coset (ŝl2)l × (ŝl2)N/(ŝl2)l+N . In addition the path description of the parafermion characters is found as a limit of the spinon description of the string functions.
متن کاملOn Thermodynamical Properties of Some Coset CFT Backgrounds
We investigate the thermodynamical features of two Lorentzian signature backgrounds that arise in string theory as exact CFTs and possess more than two disconnected asymptotic regions: the 2-d charged black hole and the Nappi-Witten cosmological model. We find multiple smooth disconnected Euclidean versions of the charged black hole background. They are characterized by different temperatures a...
متن کاملHolographic approach to deformations of NS5-brane distributions and exact CFTs
We consider general planar deformations of a circular distribution of NS5-branes. The near-horizon region of the latter admits, after a T-duality transformation, an exact conformal-field-theory description in terms of the coset model SU(2)/U(1)×SL(2,R)/U(1). We derive the exactly marginal operators corresponding to an infinitesimal planar deformation using the conjectured holography between the...
متن کاملBoundary Flows in general Coset Theories
In this paper we study the boundary effects for off-critical integrable field theories which have close analogs with integrable lattice models. Our models are the SU(2)k ⊗ SU(2)l/SU(2)k+l coset conformal field theories perturbed by integrable boundary and bulk operators. The boundary interactions are encoded into the boundary reflection matrix. Using the TBA method, we verify the flows of the c...
متن کاملBoundary Flows in the general Coset Theories
In this paper we study the boundary effects for off-critical integrable field theories which have close analogs with integrable lattice models. Our models are the SU(2)k ⊗ SU(2)l/SU(2)k+l coset conformal field theories perturbed by integrable boundary and bulk operators. The boundary interactions are encoded into the boundary reflection matrix. Using the TBA method, we verify the flows of the c...
متن کامل