Bound states near a short-range impurity in crossed magnetic and electric fields
Kunze C., Levinson Y. B., Lubin M. I., Sukhorukov E. V.
The problem of quantum scattering of an electron by a short-range impurity in a two-dimensional electron gas in the presence of a perpendicular magnetic field and a longitudinal electric field is solved. It is shown that in addition to the bound state, which exists in the case of zero electric field, there are in an electric field TV novel, nondegenerate, quasi-bound states with energies close to the Nth Landau level, irrespective of whether the impurity is attractive or repulsive.