It is shown theoretically that the strong coupling of electrons to a
high-frequency electromagnetic field results in the nulling of electron
backscattering within the Born approximation. The conditions of the effect
depend only on field parameters and do not depend on concrete form of
scattering potential. As a consequence, this phenomenon is of universal
physical nature and can take place in various conducting systems. Since the
suppression of electron backscattering results in decreasing electrical
resistance, the solved quantum-mechanical problem opens a new way to control
electronic transport properties of conductors by a laser-generated field.
Particularly, the elaborated theory is applicable to nanostructures exposed to
a strong monochromatic electromagnetic wave.Comment: Published versio
