1995/10/24 by N. Hambli, C. P. Burgess · 3 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Quantum Electrodynamics and Casimir Effect #hep-th
paper · pdf · doi:10.1103/physrevd.53.5717
published as Phys.Rev. D53 (1996) 5717-5722 · Tex, 11 pages, no figures, new references added
arxiv created 1995/10/24 · openalex publication_date 1996/05/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Polchinski has argued that the prediction of Hawking radiation must be independent of the details of unknown high-energy physics because the calculation may be performed using "nice slices," for which the adiabatic theorem may be used. If this is so, then any calculation using a manifestly covariant---and so slice-independent---ultraviolet regularization must reproduce the standard Hawking result. We investigate the dependence of the Hawking radiation on such a short-distance regulator by calculating it using a Pauli-Villars regularization scheme. We find that the regulator scale \ensuremathΛ only contributes to the Hawking flux by an amount that is exponentially small in the large variable \frac\ensuremathΛTH\ensuremath≫1, where TH is the Hawking temperature, in agreement with Polchinski's arguments. Using the techniques of effective Lagrangians, we demonstrate the robustness of our results. We also solve a technical puzzle concerning the relation between the short-distance singularities of the propagator and the Hawking effect.