Solving secular divergences in quantum corrections to Hawking radiation

Project funded by Fundação para a Ciência e a Tecnologia, I.P. (FCT), grant 2021.05118.BD. Runs 2021-10-01 to 2023-09-04. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2025-07-18); national funding data, not CORDIS. Abstract given by the source: In ArXiv:1508.07500, Akhmedov and collaborators initiated the study of quantum corrections to Hawking radiation due to self-interactions of the intervening fields. Unfortunately they discovered that those corrections grew with time. This suggests that the approximation that the self-interactions only give small contributions does not hold at sufficiently late times. However, this is not an unexpected behaviour, a very similar phenomenon has been well documented in the cosmological context, and, in that case, it has been extensively studied and there are many methods of writing an effective theory for long wavelength modes that resolve this divergence. Our aim is to use these methods developed for cosmology to address the divergence in the black hole situation.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Fundação para a Ciência e a Tecnologia, I.P. (FCT). Retrieved 2026-10-28. Licence: Creative Commons Attribution 4.0 (OpenAIRE Graph). Selected metadata, adapted presentation; the publisher's record is authoritative. No endorsement by the source is implied. Licence: Creative Commons Attribution 4.0 (CC BY 4.0).

AI-assisted summary: The project, funded by FCT, investigates quantum corrections to Hawking radiation from 2021 to 2023. It aims to apply cosmological methods to resolve divergences in black hole scenarios, as previously noted by Akhmedov and collaborators. Suggested technology pillar: simulation. Generated by AI from the public source text; it may contain errors and the original source is authoritative.