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We classify vertex operator algebras (VOAs) of OZ-type generated by Ising vectors of $\sigma$-type. As a consequence of the classification, we also prove that such VOAs are simple, rational, $C_2$-cofinite and unitary, that is, they have…

Quantum Algebra · Mathematics 2025-02-18 Cuipo Jiang , Ching Hung Lam , Hiroshi Yamauchi

Frenkel, Lepowsky, and Meurman constructed a vertex operator algebra (VOA) associated to any even, integral, Euclidean lattice. In the language of physics, these are examples of chiral conformal field theories (CFT). In this paper, we…

High Energy Physics - Theory · Physics 2024-08-14 Ranveer Kumar Singh , Madhav Sinha

This paper is a review of open-closed rational conformal field theory (CFT) via the theory of vertex operator algebras (VOAs), together with a proposal of a new geometry based on CFTs and D-branes. We will start with an outline of the idea…

Quantum Algebra · Mathematics 2011-07-20 Liang Kong

We classify all two-dimensional, unitary, rational conformal field theories with two primaries, central charge $c<25$, and arbitrary Wronskian index. In mathematical parlance, we classify all strongly regular vertex operator algebras (VOAs)…

High Energy Physics - Theory · Physics 2023-04-04 Sunil Mukhi , Brandon C. Rayhaun

This is the first paper of a three-part series in which we develop a theory of conformal blocks for $C_2$-cofinite vertex operator algebras (VOAs) that are not necessarily rational. The ultimate goal of this series is to prove a…

Quantum Algebra · Mathematics 2025-04-01 Bin Gui , Hao Zhang

The leitmotif of these Notes is the idea of a vertex operator algebra (VOA) and the relationship between VOAs and elliptic functions and modular forms. This is to some extent analogous to the relationship between a finite group and its…

Quantum Algebra · Mathematics 2011-03-03 Geoffrey Mason , Michael P. Tuite

In this paper we study representations of conformal nets associated with positive definite even lattices and their orbifolds with respect to isometries of the lattices. Using previous general results on orbifolds, we give a list of all…

Operator Algebras · Mathematics 2007-05-23 Chongying Dong , Feng Xu

This thesis describes a new approach to conformal field theory. This approach combines the method of coadjoint orbits with resolutions and chiral vertex operators to give a construction of the correlation functions of conformal field…

High Energy Physics - Theory · Physics 2008-02-03 Washington Taylor

We prove that all holomorphic vertex operator algebras of central charge $24$ with non-trivial weight one subspaces are unitary. The main method is to use the orbifold construction of a holomorphic VOA $V$ of central charge $24$ directly…

Quantum Algebra · Mathematics 2023-03-22 Ching Hung Lam

We discuss the classification of strongly regular vertex operator algebras (VOAs) with exactly three simple modules whose character vector satisfies a monic modular linear differential equation with irreducible monodromy. Our Main Theorem…

Quantum Algebra · Mathematics 2020-08-05 Cameron Franc , Geoffrey Mason

In this paper, we study the structure of a general framed vertex operator algebra. We show that the structure codes (C,D) of a framed VOA V satisfy certain duality conditions. As a consequence, we prove that every framed VOA is a simple…

Quantum Algebra · Mathematics 2010-02-09 Ching Hung Lam , Hiroshi Yamauchi

A unitary and strongly rational vertex operator algebra (VOA) $V$ is called strongly unitary if all irreducible $V$-modules are unitarizable. A strongly unitary VOA $V$ is called completely unitary if for each unitary $V$-modules $W_1$,…

Quantum Algebra · Mathematics 2024-03-06 Bin Gui

We show the strong graded locality of all unitary minimal W-algebras, so that they give rise to irreducible graded-local conformal nets. Among these unitary vertex superalgebras, up to taking tensor products with free fermion vertex…

Mathematical Physics · Physics 2025-11-03 Sebastiano Carpi , Tiziano Gaudio

By a pointed vertex operator algebra (VOA) we mean one whose modules are all simple currents (i.e. invertible), e.g. lattice VOAs. This paper systematically explores the interplay between their orbifolds and tensor category theory. We begin…

Quantum Algebra · Mathematics 2024-10-02 Terry Gannon , Andrew Riesen

We discuss some basic problems and conjectures in a program to construct general orbifold conformal field theories using the representation theory of vertex operator algebras. We first review a program to construct conformal field theories.…

Quantum Algebra · Mathematics 2020-04-03 Yi-Zhi Huang

We give an equivalence of categories between: (i) M\"obius vertex algebras which are equipped with a choice of generating family of quasiprimary vectors, and (ii) (not-necessarily-unitary) M\"obius-covariant Wightman conformal field…

Mathematical Physics · Physics 2025-07-29 Sebastiano Carpi , Christopher Raymond , Yoh Tanimoto , James E. Tener

We show that C_2-cofiniteness is enough to prove a modular invariance property of vertex operator algebras without assuming the semisimplicity of Zhu algebra. For example, if a VOA V=\oplus_{m=0}^{\infty}V_m is C_2-cofinite, then the space…

Quantum Algebra · Mathematics 2007-05-23 Masahiko Miyamoto

We study a vertex operator algebra containing a tensor product of Ising models. It is a direct sum of code vertex operator algebra and its irreducible modules. Therefore, we classify all irreducible modules of code vertex operator algebras…

High Energy Physics - Theory · Physics 2007-05-23 Masahiko Miyamoto

We formulate the unitary rational orbifold conformal field theories in the algebraic quantum field theory framework. Under general conditions, we show that the orbifold of a given unitary rational conformal field theories generates a…

Quantum Algebra · Mathematics 2009-10-31 Feng Xu

In several examples it has been observed that a module category of a vertex operator algebra (VOA) is equivalent to a category of representations of some quantum group. The present article is concerned with developing such a duality in the…

Quantum Algebra · Mathematics 2021-12-02 Shinji Koshida , Kalle Kytölä