PIRSA:21110004

Video URL

https://pirsa.org/21110004

Twistor action for GR - Atul Sharma, University of Oxford

Hurlburt, D. (2021). Twistor action for GR - Atul Sharma, University of Oxford. Perimeter Institute for Theoretical Physics. https://pirsa.org/21110004

Hurlburt, Dave. Twistor action for GR - Atul Sharma, University of Oxford. Perimeter Institute for Theoretical Physics, Nov. 04, 2021, https://pirsa.org/21110004 

          @misc{ scivideos_PIRSA:21110004,
            doi = {10.48660/21110004},
            url = {https://pirsa.org/21110004},
            author = {Hurlburt, Dave},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Twistor action for GR - Atul Sharma, University of Oxford},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2021},
            month = {nov},
            note = {PIRSA:21110004 see, \url{https://scivideos.org/pirsa/21110004}}
          }

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Talk numberPIRSA:21110004
DOI10.48660/21110004
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

It has been a long-standing dream of twistor theorists to understand gravity without ever talking about gravitons in space-time. To this end, I will describe the recent discovery of a twistor action formulation of perturbative general relativity. This takes the form of a theory governing complex structure deformations on twistor space. It reduces to Plebanski's formulation of GR on performing the Penrose transform to space-time. Some promising applications include finding on-shell recursion relations like MHV rules for graviton scattering amplitudes, studying the quantum integrability of self-dual GR, etc.

Zoom Link: https://pitp.zoom.us/j/99235001602?pwd=QVN6b2ZPbTM2SkFWNkxYTEhzd0tsdz09