569 citations · 2.9k across the 30 of their papers we have counts for
30 papers
Free field realisation of boundary vertex algebras for Abelian gauge theories in three dimensions
Christopher Beem, Andrea E. V. Ferrari
We study the boundary vertex algebras of -twisted Abelian gauge theories in three dimensions. These are identified with the BRST quotient (semi-infinite cohomolo…
Free field realisation and the chiral universal centraliser
Christopher Beem, Sujay Nair
In the TQFT formalism of Moore-Tachikawa for describing Higgs branches of theories of class , the space associated to the unpunctured sphere in type is…
Schur Indices of Class and Quasimodular Forms
Christopher Beem, Shlomo S. Razamat, Palash Singh
We investigate the unflavoured Schur indices of class theories of modest rank, and in the case of super Yang-Mills theory with special unitary gauge gr…
A geometric free field realisation for the genus-two class theory of type
Christopher Beem, Carlo Meneghelli
We present a free field realisation for the vertex operator algebra associated to the genus-two, class superconformal field theory of type . The free…
Argyres-Douglas Theories in Class S Without Irregularity
Christopher Beem, Wolfger Peelaers
We make a preliminary investigation into twisted theories of class S. Contrary to a common piece of folklore, we establish that theories of this type realise a variety of…
VOAs and rank-two instanton SCFTs
Christopher Beem, Carlo Meneghelli, Wolfger Peelaers +1
We analyze the N=2 superconformal field theories that arise when a pair of D3-branes probe an F-theory singularity from the perspective of the associated vertex operator algebra. W…