26 citations · 29 across the 2 of their papers we have counts for
4 papers · 1 filter
Globally conformal invariant gauge field theory with rational correlation functions
Nikolay M. Nikolov, Yassen S. Stanev, Ivan T. Todorov
Operator product expansions (OPE) for the product of a scalar field with its conjugate are presented as infinite sums of bilocal fields V_k (x_1, x_2) of dimension (k,k). For a {\i…
Global Conformal Invariance and Bilocal Fields with Rational Correlation Functions
Nikolay M. Nikolov, Yassen S. Stanev, Ivan T. Todorov
The singular part of the \textit{operator product expansion} (OPE) of a pair of \textit{globally conformal invariant} (GCI) scalar fields of (integer) dimension can be writ…
Two Dimensional Conformal Field Theory on Open and Unoriented Surfaces
Yassen S. Stanev
Introduction to two dimensional conformal field theory on open and unoriented surfaces. The construction is illustrated in detail on the example of SU(2) WZW models.
Regular basis and R-matrices for the su(n)_k Knizhnik-Zamolodchikov equation
L. K. Hadjiivanov, Ya. S. Stanev, I. T. Todorov
Dynamical R-matrix relations are derived for the group-valued chiral vertex operators in the SU(n) WZNW model from the KZ equation for a general four-point function including two s…