English

A frame-dependent gravitational effective action mimics a cosmological constant, but modifies the black hole horizon

General Relativity and Quantum Cosmology 2018-06-05 v1 High Energy Physics - Theory Mathematical Physics math.MP

Abstract

A frame dependent effective action motivated by the postulates of three-space general coordinate invariance and Weyl scaling invariance exactly mimics a cosmological constant in Robertson-Walker spacetimes. However, in a static spherically symmetric Schwarzschild-like geometry it modifies the black hole horizon structure within microscopic distances of the nominal horizon, in such a way that g00g_{00} never vanishes. This could have important implications for the black hole "information paradox".

Keywords

Cite

@article{arxiv.1605.05217,
  title  = {A frame-dependent gravitational effective action mimics a cosmological constant, but modifies the black hole horizon},
  author = {Stephen L. Adler},
  journal= {arXiv preprint arXiv:1605.05217},
  year   = {2018}
}

Comments

Latex, 5 pages. First Award Essay in the 2016 Gravity Research Foundation essay competition. To be published in International Journal of Modern Physics D