Abstract
In this paper, we investigate the quantum coherence for two flavor neutrinos propagating in a Schwarzschild metric. In fact, this issue is explored both qualitatively via calculating the parameter in Leggett-Garg inequality and also quantitatively by evaluating the -norm, . Using the weak field approximations, we show that the gravitational effects decrease the maximum value of for some intervals of energy in such a way that there is no violation, while it leaves the maximum amount of the quantum coherence, , unchanged.
- Received 15 September 2021
- Accepted 21 April 2022
DOI:https://doi.org/10.1103/PhysRevD.105.095024
© 2022 American Physical Society