Thermodynamic structure of Lanczos-Lovelock field equations from near-horizon symmetries

@article{Kothawala2009ThermodynamicSO,
  title={Thermodynamic structure of Lanczos-Lovelock field equations from near-horizon symmetries},
  author={Dawood Kothawala and Thanu Padmanabhan},
  journal={Physical Review D},
  year={2009},
  volume={79},
  pages={104020}
}
It is well known that, for a wide class of spacetimes with horizons, Einstein equations near the horizon can be written as a thermodynamic identity. It is also known that the Einstein tensor acquires a highly symmetric form near static, as well as stationary, horizons. We show that, for generic static spacetimes, this highly symmetric form of the Einstein tensor leads quite naturally and generically to the interpretation of the near-horizon field equations as a thermodynamic identity. We… 
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