Statistical interpretation of the Bekenstein entropy for systems with a stretched horizon.

  title={Statistical interpretation of the Bekenstein entropy for systems with a stretched horizon.},
  author={Oleg Lunin and Samir D. Mathur},
  journal={Physical review letters},
  volume={88 21},
For the two-charge extremal holes in string theory we show that the Bekenstein entropy obtained from the area of the stretched horizon has a statistical interpretation as a "coarse graining entropy": different microstates give geometries that differ near r = 0, and the stretched horizon cuts off the metric at r = b where these geometries start to differ. 
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