Macroscopic backreaction of the trace anomaly on classical vacuum backgrounds
Phys. Rev. D 113, 124005 – Published 4 June, 2026
DOI: https://doi.org/10.1103/v5d2-k3f4
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 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.
