  The quantum mechanical states of the neutral particle endowed with a magnetic
moment in the combination of electromagnetic vortex field together with the
constant magnetic field are dealt with. It is shown that this system of fields
is capable to capture the particle in the perpendicular direction and guide it
along the propagating wave. The quantum evolution is subject to tunneling
processes, which can destroy the delicate trapping mechanism. The probability
of these processes show that it should be in principle possible to catch and
guide the particle for the time of several microseconds. This time can be
lengthened by the appropriate adjustments of the external magnetic field.
