PIRSA:25100204

Video URL

https://pirsa.org/25100204

Light-cone formulation and Carrollian Physics

Majumdar, S. (2025). Light-cone formulation and Carrollian Physics. Perimeter Institute for Theoretical Physics. https://pirsa.org/25100204

Majumdar, Sucheta. Light-cone formulation and Carrollian Physics. Perimeter Institute for Theoretical Physics, Oct. 30, 2025, https://pirsa.org/25100204 

          @misc{ scivideos_PIRSA:25100204,
            doi = {10.48660/25100204},
            url = {https://pirsa.org/25100204},
            author = {Majumdar, Sucheta},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Light-cone formulation and Carrollian Physics},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2025},
            month = {oct},
            note = {PIRSA:25100204 see, \url{https://scivideos.org/pirsa/25100204}}
          }

Sucheta Majumdar École Normale Supérieure de Lyon (ENS Lyon)

Talk numberPIRSA:25100204
DOI10.48660/25100204
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Motivated by recent advances in "non-Lorentzian" physics, I will revisit the light-cone formulation of QFT, which has played a central role in the quantization of gauge theories. Much of its success can be traced to the presence of an underlying non-relativistic (Galilean) structure within the light-cone Poincaré algebra. I will show that light-cone Minkowski space belongs to a broader class of non-Lorentzian geometries, whose isometry algebra accommodates several interesting kinematical subalgebras—particularly of the Galilean and Carrollian types. These kinematical Lie algebras encode the symmetry transformations that govern spacetime kinematics and the evolution of physical systems. Finally, I will discuss certain aspects of light-cone field theories, emphasizing their connection to the hypersurface deformation algebra associated with Carrollian geometries, as well as their possible implications.