Optically induced persistent current in carbon nanotubes

We demonstrate theoretically that an off-resonant circularly polarized electromagnetic field can induce a persistent current in carbon nanotubes, which corresponds to electron rotation about the nanotube axis. As consequence, nanotubes acquire magnetic moment along axis, depends on their crystal structure and be detected state-of-the-art measurements. This effect related phenomena are analyzed within developed Floquet theory describing electronic properties of irradiated by field.