RESONANT-TUNNELING LIFETIMES IN MULTIBARRIER STRUCTURES - A COMPLEX COORDINATE APPROACH

The complex coordinate approach, widely used in theoretical atomic spe ctroscopy, is applied here to study energies and lifetimes of resonant tunnelling in double-barrier heterostructures within an applied elect ric field. The method gives very accurate results and they are compare d with those obtained by other methods. Possible applications of this method for studying resonant states in various low-dimensional structu res are discussed.