De Sitter Cores from Nonlocal Quantum Field Theories

E. J. Thompson

doi:10.1140/epjp/s13360-026-08004-w

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arXiv · 2607.13061

De Sitter Cores from Nonlocal Quantum Field Theories

E. J. Thompson

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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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E. J. Thompson. 2026-07-07. De Sitter Cores from Nonlocal Quantum Field Theories. https://doi.org/10.1140/epjp%2Fs13360-026-08004-w

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