# Neutrino decoherence in presence of strong gravitational fields

## TL;DR

This paper investigates how intense gravitational fields near compact objects affect neutrino coherence, using density matrix formalism and Gaussian wave packets to analyze decoherence times in curved spacetime.

## Contribution

It introduces a method to quantify neutrino decoherence in strong gravitational fields, highlighting the significant influence of gravity on neutrino wave packet coherence.

## Key findings

- Strong gravitational fields reduce neutrino coherence times.
- Gravity near compact objects significantly impacts neutrino wave packet propagation.
- Neglecting matter outside the compact object simplifies the analysis.

## Abstract

We explore the impact of strong gravitational fields on neutrino decoherence. To this aim, we employ the density matrix formalism to describe the propagation of neutrino wave packets in curved spacetime. By considering Gaussian wave packets, we determine the coherence proper time, neglecting the effect of matter outside the compact object. We show that strong gravitational fields nearby compact objects significantly influence neutrino coherence.