The magnetic field model proposed in the paper is based on the two concepts of quantum mechanics: the creation of virtual particles pairs by quantum entities and the possibility of existence in the physical vacuum of s possessing zero-point energy. The characteristics of magnetism, i.e. the magnetic vector potential and magnetic induction, are shown to be associated with definite types of motion of s. The magnitude of magnetic vector potential is determined by the oscillation frequency of . The magnetic induction is proportional to the speed of translational motion of s. The energy associated with these types of motion is analyzed. If in a certain region of physical vacuum there is no s, in particular this takes place in the motion of Cooper pairs of electrons in superconductors, no magnetic field may exist in the region, that is, there takes place the “expulsion” of magnetic field from the superconductor. It is shown that in the physical vacuum containing s there is a relationship, under definite conditions, between magnetic and electric fields.

zero-point energy, , magnetic induction, magnetic vector potential, virtual particles, Meissner–Ochsenfeld effect, superconductivity