De Sitter cores from nonlocal quantum field theories

2026/07/07 by E. J. Thompson, Ellis Thompson · 1 voice
Physics and Astronomy · #Black Holes and Theoretical Physics #De Sitter universe #Field (mathematics) #Noncommutative and Quantum Gravity Theories #Quantization (signal processing) #Quantum #Quantum Chromodynamics and Particle Interactions #Quantum field theory #Quantum system #physics.gen-ph

paper · pdf · doi:10.1140/epjp/s13360-026-08004-w

openalex publication_date 2026/07/07 · arxiv published 2026/07/07 · arxiv updated 2026/07/07 · openalex created_date 2026/07/08 · openalex updated_date 2026/08/05

Abstract

Nonlocal quantum field theories achieve perturbative ultraviolet finiteness by inserting gauge- and diffeomorphism-covariant entire-function regulators into all kinetic terms. These operators can be viewed as nonlocal smearing maps acting on sources in the Einstein equations. In this paper I show that, when the same entire-function regulator responsible for UV-finite loops is applied to the energy-momentum tensor of a point mass, the resulting static, spherically symmetric solution develops a regular de~Sitter core in place of a curvature singularity.

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Discussions

• E. J. Thompson: De Sitter Cores from Nonlocal Quantum Field Theories https://arxiv.org/abs/2607.13061 https://arxiv.org/pdf/2607.13061 https://arxiv.org/html/2607.13061 [bsky, 0 points, 0 comments]

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• Ghost-free infinite derivative quantum field theory
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• De Sitter Breaking in Field Theory