Neutrino many-body correlations

TL;DR

This paper critically examines claims that quantum many-body correlations are missing in standard neutrino oscillation models, finding no substantial evidence to support the need for more complex descriptions.

Contribution

It challenges recent suggestions by analyzing the existing literature and arguing that current quantum-kinetic formalism is adequate for describing collective neutrino oscillations.

Findings

No evidence that many-body correlations are missing in standard models

Current formalism adequately describes collective neutrino oscillations

Claims of inadequacy are not supported by existing literature

Abstract

This paper responds to suggestions that the standard approach to collective neutrino oscillations leaves out potentially important quantum many-body correlations. Arguments in favor of this idea have been based on calculations that, on close scrutiny, offer no evidence either way. Inadequacies of the usual quantum-kinetic formalism are not currently supported by the literature.