Alexei Ternov

Neutrino quantum states and spin light in matter

Abstract On the basis of the exact solutions of the modified Dirac equation for a massive neutrino moving in matter we develop the quantum theory of the spin light of neutrino (SL ν ). The expression for the emitted photon energy is derived as a function of the density of matter for different matter compositions. The dependence of the photon energy on the helicities of the initial and final neutrino states is shown explicitly. The rate and radiation power of the SL ν in matter are obtained with the emitted photon linear and circular polarizations being accounted for. The developed quantum approach to the SL ν in matter (which is similar to the Furry representation of electrodynamics) can be used in the studies of other processes with neutrinos in the presence of matter.

Quantum theory of neutrino spin light in dense matter

We develop the quantum theory of the spin light of neutrino (

Dirac and Majorana neutrinos in matter

SL\nu

The effect of plasmon mass on spin light of neutrino in dense matter

) exactly accounting for the effect of background matter. Contrary to the already performed studies of the

Spin light of the electron in dense matter

SL\nu

Spin light of electron in matter

, in this paper we derive explicit and closed expressions for the

Neutrino in Matter and External Fields

SL\nu

SPIN LIGHT IN NEUTRINO TRANSITION BETWEEN DIFFERENT MASS STATES

rate and power and for the emitted photon energy, which are valid for an arbitrary matter density (including very high values). The spatial distribution of the radiation power and the dependence of the emitted photon energy on the direction of radiation are also studied in detail for the first time. We analyze the

Neutrino radiative decay in external field and medium

SL\nu

Spin light of neutrino in astrophysical environments

polarization properties and show that within a wide range of neutrino momenta and matter densities the