PIRSA:20020022

Video URL

https://pirsa.org/20020022

New Perspectives from Gravity's Extremes

East, W. (2020). New Perspectives from Gravity's Extremes. Perimeter Institute for Theoretical Physics. https://pirsa.org/20020022

East, William. New Perspectives from Gravity's Extremes. Perimeter Institute for Theoretical Physics, Feb. 26, 2020, https://pirsa.org/20020022 

          @misc{ scivideos_PIRSA:20020022,
            doi = {10.48660/20020022},
            url = {https://pirsa.org/20020022},
            author = {East, William},
            keywords = {Other Physics},
            language = {en},
            title = {New Perspectives from Gravity{\textquoteright}s Extremes},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2020},
            month = {feb},
            note = {PIRSA:20020022 see, \url{https://scivideos.org/pirsa/20020022}}
          }

William East Perimeter Institute for Theoretical Physics

Talk numberPIRSA:20020022
DOI10.48660/20020022
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Beginning with the landmark gravitational wave detections by LIGO/Virgo, we have been gaining an unprecedented view of the dynamics of strongly curved spacetime originally predicted by Einstein. Enabling and motivated by these observations, there has been rapid development in the theoretical and computational tools we use to understand and interpret the nature of gravity and matter in this regime. This is essential to fulfilling the promise of gravitational wave astronomy to not only be a new window on the astrophysics of black hole and neutron star mergers, but also to be a unique probe of fundamental physics. I will illustrate this, highlighting the example of how black holes can be used to search for new particles. The same theoretical tools also allow us to push Einstein's theory to the extreme in search of the limits of its predictability, for example testing cosmic censorship, the idea that the breakdown in Einstein's equations associated with unhalted collapse is always hidden behind a black hole horizon. I will describe some recent work resolving a long-standing putative counterexample to this conjecture.