The quantum nature of neutrino oscillations would be reflected in the mismatch between the neutrino survival probabilities with and without an intermediate observation. We propose this ``quantum mismatch'' as a measure of quantumness in neutrino oscillations, which precisely extracts the interference term in the two-flavor limit. In the full three-flavor scenario, we provide modified definitions of the Leggett-Garg and quantum mismatch measures. These are applicable for long-baseline and reactor neutrino experiments that measure neutrino survival probabilities with negligible matter effects.
@article{arxiv.2304.02475,
title = {Quantum mismatch: a powerful measure of "quantumness" in neutrino oscillations},
author = {Dibya S. Chattopadhyay and Amol Dighe},
journal= {arXiv preprint arXiv:2304.02475},
year = {2023}
}