Unearthing Neutrino Decoherence from Quantum Spacetime: An Open Quantum Systems Perspective

TL;DR

This paper explores how quantum spacetime fluctuations, modeled via  Minkowski spacetime, cause energy-dependent decoherence in neutrino oscillations, especially affecting low-energy relic neutrinos, with implications for future experiments.

Contribution

It introduces a novel energy-dependent decoherence effect in neutrino oscillations caused by quantum spacetime fluctuations, specifically a unique  Minkowski model with a power law dependence.

Findings

Decoherence scales as E^{-4} for relic neutrinos.

Low-energy neutrinos are significantly affected by quantum spacetime fluctuations.

Potential for future experiments to constrain quantum gravity parameters.

Abstract

We investigated the influence of \(\kappa\) Minkowski-type quantum spacetime on neutrino oscillations, revealing that spacetime fluctuations introduce a unique energy-dependent power law, \(E^{-4}\), in the decoherence effect for relic neutrinos. This effect is particularly pronounced for low-energy neutrinos, such as those from the cosmic neutrino background ($C\nu B$). Our results indicate the potential for new models of low-energy quantum gravity-induced decoherence, which could pave the way for future experiments, such as IceCube-Gen2 and KM3NeT, to further constrain the deformation parameter.