Spin-electron-acoustic waves and solitons in high-density degenerate relativistic plasmas

The spin-electron-acoustic waves (sometimes called the spin-plasmons) can be found in degenerate electron gas if spin-up electrons and spin down move relatively each other. Here, we suggest relativistic hydrodynamics with separate evolution which allows us to study linear nonlinear waves, including solitons. Presented hydrodynamic model is corresponding generalization of average reverse gamma factor consists equations for following functions partial concentrations (for electrons), velocity fields, factors, flux factors. We find that effects decreases phase waves. Numerical analysis changes spectra Langmuir wave, ion-acoustic wave under change polarization presented. It demonstrated getting closer other limit. Spin dependence amplitude width soliton as well. Reformation bright potential electric field into dark influence found.