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We generalize the Carpi-Kawahigashi-Longo-Weiner correspondence between vertex operator algebras and conformal nets to the case of vertex operator superalgebras and graded-local conformal nets by introducing the notion of strongly…

Operator Algebras · Mathematics 2025-09-19 Sebastiano Carpi , Tiziano Gaudio , Robin Hillier

We study the relation between representations of certain infinite-dimensional Lie groups and those of the associated conformal nets. For a chiral conformal net extending the net generated by the vacuum representation of a loop group or…

Representation Theory · Mathematics 2025-08-12 Maria Stella Adamo , Luca Giorgetti , Yoh Tanimoto

We summarize interactions between vertex operator algebras and number theory through the lens of Zhu theory. The paper begins by recalling basic facts on vertex operator algebras (VOAs) and modular forms, and then explains Zhu's theorem on…

Quantum Algebra · Mathematics 2022-11-01 Cameron Franc , Geoffrey Mason

We formulate conformal field theory in the setting of algebraic quantum field theory as Haag-Kastler nets of local observable algebras with diffeomorphism covariance on the two-dimensional Minkowski space. We then obtain a decomposition of…

Mathematical Physics · Physics 2007-05-23 Yasuyuki Kawahigashi

We prove convergence and compatibility of iterated bulk and boundary operator product expansions (OPEs) in two-dimensional conformal field theory with locally $C_1$-cofinite chiral symmetry. For each tree, we give an explicit domain of…

Quantum Algebra · Mathematics 2026-05-27 Yuto Moriwaki

In this article we show that the conformal nets corresponding to WZW models are rational, resolving a long-standing open problem. Specifically, we show that the Jones-Wassermann subfactors associated with these models have finite index.…

Mathematical Physics · Physics 2024-09-16 James E. Tener

We consider C-graded vertex algebras, which are vertex algebras V with a C-grading such that V is an admissible V-module generated by 'lowest weight vectors'. We show that such vertex algebras have a 'good' representation theory in the…

Quantum Algebra · Mathematics 2015-06-16 Rob Laber , Geoffrey Mason

In this paper we use Lie conformal algebras to realize some moonshine type VOAs, whose Greiss algebras are Jordan algebras. On the other hand, we consider some free fields which realizes the corresponding simple VOAs. As an application, we…

Quantum Algebra · Mathematics 2020-03-23 Hongbo Zhao

Unitary vertex operator algebras are introduced and studied. It is proved that most well-known rational vertex operator algebras are unitary. The classification of unitary vertex operator algebras with central charge c less than or equal to…

Quantum Algebra · Mathematics 2013-08-13 Chongying Dong , Xingjun Lin

Using the language of vertex operator algebras (VOAs) and vector-valued modular forms we study the modular group representations and spaces of 1-point functions associated to intertwining operators for Virasoro minimal model VOAs. We…

Quantum Algebra · Mathematics 2016-12-09 Matthew Krauel , Christopher Marks

We identify vertex operator algebras (VOAs) of a class of Argyres-Douglas (AD) matters with two types of non-abelian flavor symmetries. They are the $W$ algebra defined using nilpotent orbit with partition $[q^m,1^s]$. Gauging above AD…

High Energy Physics - Theory · Physics 2019-02-11 Dan Xie , Wenbin Yan

Prototypical rational vertex operator algebras are associated to affine Lie algebras at positive integer level k. They correspond physically to the Wess-Zumino-Witten theories, and their representation theory can be captured by quantum…

Quantum Algebra · Mathematics 2025-11-04 Terry Gannon

Lie conformal algebras appear in the theory of vertex algebras. Their relation is similar to that of Lie algebras and their universal enveloping algebras. Associative conformal algebras play a role in conformal representation theory. We…

Quantum Algebra · Mathematics 2007-05-23 Alexander Retakh

We consider unitary simple vertex operator algebras whose vertex operators satisfy certain energy bounds and a strong form of locality and call them strongly local. We present a general procedure which associates to every strongly local…

Operator Algebras · Mathematics 2018-10-10 Sebastiano Carpi , Yasuyuki Kawahigashi , Roberto Longo , Mihály Weiner

This is a set of lecture notes on the operator algebraic approach to 2-dimensional conformal field theory. Representation theoretic aspects and connections to vertex operator algebras are emphasized. No knowledge on operator algebras or…

Mathematical Physics · Physics 2018-04-24 Yasuyuki Kawahigashi

It is one of the remarkable results of vertex operator algebras (VOAs) that the graded traces (one-point correlation functions) of holomorphic VOAs are modular functions. This paper explores the question of which modular functions arise as…

Quantum Algebra · Mathematics 2007-05-23 Katherine L. Hurley

It is typical for a semi-infinite cohomology complex associated with a graded Lie algebra to occur as a vertex operator (or chiral) superalgebra where all the standard operators of cohomology theory, in particular the differential, are…

High Energy Physics - Theory · Physics 2008-02-03 Fusun Akman

The notion of vertex operator coalgebra is presented and motivated via the geometry of conformal field theory. Specifically, we describe the category of geometric vertex operator coalgebras, whose objects have comultiplicative structures…

Quantum Algebra · Mathematics 2007-05-23 Keith Hubbard

When can two strongly rational vertex operator algebras or 1+1d rational conformal field theories (RCFTs) be related by topological manipulations? For vertex operator algebras, the term "topological manipulations" refers to operations like…

High Energy Physics - Theory · Physics 2025-01-13 Sven Möller , Brandon C. Rayhaun

We provide an Operator Algebraic approach to N=2 chiral Conformal Field Theory and set up the Noncommutative Geometric framework. Compared to the N=1 case, the structure here is much richer. There are naturally associated nets of spectral…

Operator Algebras · Mathematics 2015-03-23 Sebastiano Carpi , Robin Hillier , Yasuyuki Kawahigashi , Roberto Longo , Feng Xu