Electromagnetic theory of sound in metal

The theory of sound in an isotropic solid neglecting by dissipation in the adiabatic approximation taking into account internal electromagnetic field is built. The resiliency of solid is modeled by pressure of Fermi-gas of electrons and by the effective external magnetic field with equal to zero first and different from zero second correlation moment. It is shown that sound waves it is possible to consider equivalently as waves of the electromagnetic field in solid, and as waves of displacement vector. Expressions for transversal and longitudinal velocities of sound through introduced effective parameters are received.