Operator Algebra in Logarithmic Conformal Field Theory

TL;DR

This paper extends the operator algebra framework of two-dimensional conformal field theories to the logarithmic case, deriving explicit multi-point functions and analyzing algebraic properties for systems like disordered models.

Contribution

It develops the operator algebra for logarithmic conformal field theories, providing explicit formulas for multi-point functions and examining algebraic consistency.

Findings

Derived closed-form three and four point functions for logarithmic quasiprimary fields.

Constructed the operator algebra for logarithmic CFTs and tested its associativity.

Applied the framework to c=0 disordered systems with non-degenerate vacua.

Abstract

For some time now, conformal field theories in two dimensions have been studied as integrable systems. Much of the success of these studies is related to the existence of an operator algebra of the theory. In this paper, some of the extensions of this machinery to the logarithmic case are studied, and used. More precisely, from Mobius symmetry constraints, the generic three and four point functions of logarithmic quasiprimary fields are calculated in closed form for arbitrary Jordan rank. As an example, c=0 disordered systems with non-degenerate vacua are studied. With the aid of two, three and four point functions, the operator algebra is obtained and associativity of the algebra studied.