Soliton model of extended quantum particles

Some first principles that, we believe, could serve as foundation for quantum theory of extended particles are formulated. It is also shown that in the point-like particles limit the non-relativistic quantum mechanics can be restored. Bohm problem of nonlinear resonance has been considered and its possible solution has been given. Within the frame-work of the Einstein-de Broglie soliton model a hydrogen atom has been simulated.