Macroscopic backreaction of the trace anomaly on classical vacuum backgrounds
General Relativity and Quantum Cosmology
2025-12-12 v1 High Energy Physics - Theory
Abstract
We study the backreaction of quantum fields in the Boulware vacuum state on the Schwarzschild geometry, using the Riegert--Mottola--Vaulin renormalized stress-energy tensor derived from the conformal anomaly. An order-reduction procedure is applied to the first order, paying special attention to the conservation of the resulting stress-energy tensor. The results obtained in these different situations are compared between them, and also to recent works in the literature using other approximations for the renormalized stress-energy tensor.
Keywords
Cite
@article{arxiv.2512.10710,
title = {Macroscopic backreaction of the trace anomaly on classical vacuum backgrounds},
author = {Raúl Carballo-Rubio and Francesco Di Filippo and Shinji Mukohyama and Kazumasa Okabayashi},
journal= {arXiv preprint arXiv:2512.10710},
year = {2025}
}
Comments
35 pages, 11 figures