Quantum aspects of gravity

Project funded by Croatian Science Foundation (HRZZ) (Research Projects), grant IP-2025-02-8625. Participating organisations named by the source: Ruđer Bošković Institute. Funded amount: EUR 135,620, as stated by the source. Runs 2025-12-08 to 2028-12-07. Keywords: quantum gravity, noncommutative geometry, gravity waves, quasinormal modes, singularities. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2026-07-23); national funding data, not CORDIS. Abstract given by the source: This project explores quantum gravity models, focusing on the spectral properties of black holes, including quasinormal modes (QNMs), and the nature of gravitational singularities. Motivated by recent breakthroughs in astrophysics, such as the Event Horizon Telescope and LIGO detections, we investigate quantum modifications to general relativity within black hole physics, including metric perturbations and gravitational waves. Our objectives include developing and analyzing quantum models using noncommutative differential geometry to address gravitational perturbations of Schwarzschild, Kerr and slowly rotating Kerr black holes, revealing unique spectral features. We will study QNM spectra via semi-analytical and numerical methods, testing for the presence of isospectrality violations, and examine the potential ''smearing out'' of classical singularities through quantum mechanical probes. The methodological approach incorporates the algebra of infinitesimal diffeomorphisms and Hopf algebras to construct a deformed Leibniz rule. Furthermore, the project will employ an innovative framework based on noncommutative differential geometry, building on established methodologies in theoretical physics and fostering international collaboration.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Croatian Science Foundation (HRZZ). 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 "Quantum aspects of gravity" is funded by the Croatian Science Foundation with a grant of EUR 135,620, running from December 8, 2025, to December 7, 2028. It focuses on quantum gravity models and the spectral properties of black holes. Suggested technology pillar: simulation. Generated by AI from the public source text; it may contain errors and the original source is authoritative.