From the 1 of 6 linked papers with an AI index.
6 papers
On the boundary Carrollian conformal algebra
Lucas Buzaglo, Xiao He, Tuan Anh Pham +3
The paper develops the mathematical theory of the boundary Carrollian conformal algebra (BCCA), constructing various modules, establishing irreducibility criteria, and introducing…
The spectrum of the bosonic ambitwistor string revisited
José M. Figueroa-O'Farrill, Girish S. Vishwa
We revisit the calculation of the spectrum of the bosonic ambitwistor string, understood as the BRST cohomology or, equivalently, as the semi-infinite cohomology of the $\mathrm{BM…
Non-relativistic quantum strings from gauged WZW models
José M Figueroa-O'Farrill, Girish S Vishwa
We construct non-relativistic quantum strings from gauged Wess--Zumino--Witten (WZW) models. We depart from the fact that Lie groups with a bi-invariant galilean structure can be s…
Central extensions, derivations, and automorphisms of semi-direct sums of the Witt algebra with its intermediate series modules
Lucas Buzaglo, Girish S. Vishwa
Lie algebras formed via semi-direct sums of the Witt algebra and its modules have become increasingly prominent in both physics and mathematics i…
The BRST quantisation of chiral BMS-like field theories
José Figueroa-O'Farrill, Girish S Vishwa
The BMS Lie algebra belongs to a one-parameter family of Lie algebras obtained by centrally extending abelian extensions of the Witt algebra by a tensor density representation.…
BMS-like algebras: canonical realisations and BRST quantisation
Carlos Batlle, José Figueroa-O'Farrill, Joaquim Gomis +1
We generalise BMS algebras in three dimensions by the introduction of an arbitrary real parameter , recovering the standard algebras (BMS, extended BMS and Weyl-BMS) for $λ=-1…