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arXiv:0709.3555hep-th

A pedagogical explanation for the non-renormalizability of gravity

Assaf Shomer

Abstract

We present a short and intuitive argument explaining why gravity is non-renormalizable. The argument is based on black-hole domination of the high energy spectrum of gravity and not on the standard perturbative irrelevance of the gravitational coupling. This is a pedagogical note, containing textbook material that is widely appreciated by experts and is by no means original.

arXiv comments
10 pages, 4 figures, Latex. V2: typos corrected, some emphasis and clarifications added
Journal reference
DOI
Subjects
hep-thHigh Energy Physics, Theory gr-qcGeneral Relativity and Quantum Cosmology hep-phHigh Energy Physics, Phenomenology

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Linked by 2 identifiable commenters in 2 comments across 2 threads, from Dec 2023 to Oct 2024.

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Discussed in comments2 threads

  1. It might be possible to detect gravitons after all 1 comment

    • The fact that QED and QCD are renormalizable while gravity is not is probably trying to tell us something deeper than we think. Relevant paper: https://arxiv.org/pdf/0709.3555 You can read the first two paragraphs of the Introduction and then skip to the last sentence of the…

      DebtDeflationView on HNParent context

  2. Do black holes have singularities? 1 comment

    • Problem is that gravity is generally thought to be non-renormalizable: https://arxiv.org/abs/0709.3555

      amaiView on HNParent context

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