PIRSA:17110110 Scientific Series Cosmology

DOI10.48660/17110110

Series: Cosmology and Gravitation

Yavartanoo, H. (2017). Fluffing Extremal Kerr, semi-classical microstates of Kerr black hole. Perimeter Institute. https://pirsa.org/17110110

Yavartanoo, Hossein. Fluffing Extremal Kerr, semi-classical microstates of Kerr black hole. Perimeter Institute, Nov. 02, 2017, https://pirsa.org/17110110 

@misc{ pirsa_PIRSA:17110110,
  doi = {10.48660/17110110},
  url = {https://pirsa.org/17110110},
  author = {Yavartanoo, Hossein},
  keywords = {Cosmology},
  language = {en},
  title = {Fluffing Extremal Kerr, semi-classical microstates of Kerr black hole},
  publisher = {Perimeter Institute},
  year = {2017},
  month = {nov},
  note = {PIRSA:17110110 see, \url{https://pirsa.org}}
}

Abstract

I present a one-function family of solutions to 4D vacuum Einstein equations. While all diffeomorphic to the extremal Kerr black hole, they are labeled by well-defined conserved charges and are hence distinct geometries. Out of the appropriate combination of these charges, we construct a Virasoro algebra and consistency conditions lead us to a proposal for identifying extreme Kerr black hole microstates, dubbed as extreme Kerr fluff. Counting these microstates, we correctly reproduce the extreme Kerr black hole entropy.

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