Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 78: Invited Topical Talks 4

T 78.1: Invited Topical Talk

Thursday, March 7, 2024, 11:00–11:30, Geb. 30.22: Gaede-HS

Signatures of quantum gravity in neutrino telescopes — •Alba Domi for the ANTARES-KM3NET-ERLANGEN collaboration — Erlangen Centre for Astroparticle Physics (ECAP), Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany

The Standard Model of particle physics and General Relativity are expected to merge into a new theory of Quantum Gravity (QG) at energies approaching the Planck scale. However, none of the proposed QG approaches has been validated to date. In an effort to gain insights into this unifying theory, the existence of "Windows on Quantum Gravity" has been postulated: observable signatures of QG effects at energy scales that are accessible to current experiments. Two such signatures are quantum decoherence (QD) and violation of Lorentz invariance (LIV). In the neutrino sector, these effects could cause modifications in neutrino oscillations, that can be measured by neutrino telescopes such as IceCube, ANTARES, and KM3NeT.

The goal of the QGRANT project is to analyse the huge amount of data collected by these telescopes via a global and novel fit in order to search for evidence of QG effects. This talk will discuss the current progress and future prospects of quantum gravity searches using neutrino telescopes.

Keywords: Quantum gravity; neutrino telescopes; neutrino oscillations; Lorentz invariance violation; quantum decoherence