PIRSA:18050067

Video URL

https://pirsa.org/18050067

Non-Lorentzian geometry in gravity, string theory and holography

Obers, N. (2018). Non-Lorentzian geometry in gravity, string theory and holography. Perimeter Institute for Theoretical Physics. https://pirsa.org/18050067

Obers, Niels. Non-Lorentzian geometry in gravity, string theory and holography. Perimeter Institute for Theoretical Physics, May. 29, 2018, https://pirsa.org/18050067 

          @misc{ scivideos_PIRSA:18050067,
            doi = {10.48660/18050067},
            url = {https://pirsa.org/18050067},
            author = {Obers, Niels},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Non-Lorentzian geometry in gravity, string theory and holography},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2018},
            month = {may},
            note = {PIRSA:18050067 see, \url{https://scivideos.org/index.php/pirsa/18050067}}
          }

Niels Obers University of Copenhagen

Talk numberPIRSA:18050067
DOI10.48660/18050067
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

I will present a brief introduction to non-Lorentzian geometries, an important example of such geometries being Newton-Cartan geometry and its torsionful generalization, which is the natural geometry to which non-relativistic field theories couple to. The talk will subsequently review how such geometries have in recent years appeared in gravity, string theory and holography. In particular, torsional Newton-Cartan geometry has been shown to appear as the boundary geometry for Lifshitz spacetimes. Furthermore, dynamical Newton-Cartan geometry is related to Horava-Lifsthiz gravity theories and appears in novel Chern-Simons theories of gravity in three dimensions. The latter can be obtained from a well-defined limit of the AdS3/CFT2 correspondence. Finally, I will briefly comment on how Newton-Cartan geometry appears in non-relativistic string theory.