| Full text | |
| Author(s): |
Bittencourt, V. A. S. V.
;
Bernardini, A. E.
;
Blasone, M.
Total Authors: 3
|
| Document type: | Journal article |
| Source: | EPL; v. 139, n. 4, p. 7-pg., 2022-08-01. |
| Abstract | |
The solutions of the Dirac equation are given in terms of bispinors, four-component objects which include both spin and chirality as internal degrees of freedom. For massive particles, the Dirac equation couples components of the bispinor with different chiralities, yielding chiral oscillations. This phenomenon can be particularly relevant for recent proposals aimed at measuring non-relativistic cosmic neutrinos, and can find analogies in Dirac-like systems, such as graphene. In this paper, a concise review of chiral oscillations is presented, including their description with the Dirac's equation dynamics and the underlying group structure. Two paradigmatic cases of chiral oscillations in physical systems are shown: the effects on lepton-antineutrino spin quantum correlations, and neutrino flavor oscillations. Finally, extensions of recent theoretical investigations as well as future research developments are discussed. Copyright (C) 2022 EPLA (AU) | |
| FAPESP's process: | 18/03960-9 - Fundamental structures of phase space quantum mechanics - Nonclassicality and classical-quantum correspondence applied to ordinary quantum mechanics and Dirac-like systems |
| Grantee: | Alex Eduardo de Bernardini |
| Support Opportunities: | Regular Research Grants |