ANALYSIS OF QUANTUM INTERFERENCE BETWEEN ELASTIC AND INELASTIC ELECTRON-SCATTERING IN DISORDERED MEDIA

A comparative analysis is made of the kinematic and dynamic approaches to describing the quantum interference that occurs when electrons in a disordered medium are subjected to simultaneous large-angle elastic scattering and multiple inelastic scattering of long-wavelength type. It is shown that both the kinematic and dynamic approaches lead to the same angular dependence of the interference effect, but that the rang e of variation of the degree of coherence as the scattering angle chan ges is found to be a factor of 2 larger for the dynamic theory than it is for the kinematic description. (C) 1998 American Institute of Phys ics. [S1063-7834(98)00508-5].