Timescale for trans-Planckian collisions in Kerr spacetime

  title={Timescale for trans-Planckian collisions in Kerr spacetime},
  author={Mandar Patil and Pankaj S. Joshi and Ken-ichi Nakao and Masashi Kimura and Tomohiro Harada},
  journal={arXiv: General Relativity and Quantum Cosmology},
We make a critical comparison between ultra-high energy particle collisions around an extremal Kerr black hole and that around an over-spinning Kerr singularity, mainly focusing on the issue of the timescale of collisions. We show that the time required for two massive particles with the proton mass or two massless particles of GeV energies to collide around the Kerr black hole with Planck energy is several orders of magnitude longer than the age of the Universe for astro-physically relevant… Expand
3 Citations
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  • J. Schnittman
  • Physics, Medicine
  • General relativity and gravitation
  • 2018
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