Neutrino energy quantization in rotating medium

TL;DR

This paper derives exact solutions for neutrino behavior in rotating matter, revealing energy quantization similar to Landau levels, which could impact understanding of neutrino trapping in neutron stars.

Contribution

It provides the first exact solution of the Dirac equation for neutrinos in rotating media, showing energy quantization and potential neutrino trapping mechanisms.

Findings

Neutrinos in rotating matter exhibit quantized energy levels.

Neutrino orbits in rotating media are analogous to Landau levels.

Potential for neutrino trapping in neutron stars.

Abstract

Exact solution of the modified Dirac equation in rotating medium is found in polar coordinates in the limit of vanishing neutrino mass. The solution for the active left-handed particle exhibit properties similar to those peculiar for the charged particle moving in the presence of a constant magnetic field. Accordingly, the particle in the rotating matter has circle orbits with energy levels, analogous to the Landau levels in magnetic field. The relevant physical realization of the problem is motion of neutrino inside the rotating neutron star. The feature of such motion to form binding states leads to the prediction of the new mechanism for neutrino trapping. The solution found can be used for detailed description of relativistic and nearly massless neutrino dynamics in neutron stars. Results obtained further develop the "method of exact solutions" in application to particle interactions in presence of dense matter.