Nature abhors a horizon
Abstract
The information paradox can be resolved if we recognize that the wavefunctional in gravity should be considered on the {\it whole} of superspace, the space of possible . The largeness of the Bekenstein entropy implies a vast space of gravitational solutions, which are conjectured to be fuzzball configurations. In the WKB approximation, the wavefunctional for a collapsing shell is oscillatory in a small region of superspace, and the classical approximation picks out this part. But the wavefunctional will be damped (`under the barrier') in the remainder of this vast superspace. We perform a simple computation to show that at the threshold of black hole formation, the barrier is lowered enough to make the latter part oscillatory; this alters the classical evolution and avoids horizon formation.
Cite
@article{arxiv.1505.05078,
title = {Nature abhors a horizon},
author = {Per Kraus and Samir D. Mathur},
journal= {arXiv preprint arXiv:1505.05078},
year = {2016}
}
Comments
7 pages, 3 figures, Essay awarded third prize in the Gravity Research Foundation 2015 essay competition (some typographical errors corrected)