Entropy function and AdS2/CFT1 correspondence

@article{Sen2008EntropyFA,
  title={Entropy function and AdS2/CFT1 correspondence},
  author={Ashoke Sen},
  journal={Journal of High Energy Physics},
  year={2008},
  volume={2008},
  pages={075}
}
  • A. Sen
  • Published 1 May 2008
  • Computer Science
  • Journal of High Energy Physics
Wald's formula for black hole entropy, applied to extremal black holes, leads to the entropy function formalism. We manipulate the entropy computed this way to express it as the logarithm of the ground state degeneracy of a dual quantum mechanical system. This provides a natural definition of the extremal black hole entropy in the full quantum theory. Our analysis also clarifies the relationship between the entropy function formalism and the Euclidean action formalism. 

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