Constraints on matter from asymptotic safety

2002/07/31 by Roberto Percacci, Daniele Perini · 13 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevd.67.081503

published as Phys.Rev. D67 (2003) 081503 · 5 pages, 2 figures, revtex4; introduction expanded

openalex publication_date 2003/04/24 · arxiv created 2003/04/28 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

Recent studies of the ultraviolet behavior of pure gravity suggest that it admits a non-Gaussian attractive fixed point, and therefore that the theory is asymptotically safe. We consider the effect on this fixed point of massless minimally coupled matter fields. The existence of a UV attractive fixed point puts bounds on the type and number of such fields.

Citations

• Exact renormalization group equations: an introductory review
• Exact evolution equation for the effective potential

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