The first law for boosted Kaluza-Klein black holes

  title={The first law for boosted Kaluza-Klein black holes},
  author={David Kastor and Sourya Ray and Jennie Traschen},
  journal={Journal of High Energy Physics},
We study the thermodynamics of Kaluza-Klein black holes with momentum along the compact dimension, but vanishing angular momentum. These black holes are stationary, but non-rotating. We derive the first law for these spacetimes and find that the parameter conjugate to variations in the length of the compact direction is an effective tension, which generally differs from the ADM tension. For the boosted black string, this effective tension is always positive, while the ADM tension is negative… 

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