Year-end Sale % OFF 
Abstract
A detailed calculation for the interacting electron-phonon system is carried out by using the double time Green's function method. The self-energy part and then the spectral weight function of the electron Green's function are given in detail to the second order of electron phonon interaction. The effects of the interaction on the chemical potential of the electron and the Fermi momentum of the electron distribution are investigated. The average electron momentum distribution at zero temperature is evaluated in an approximation which may be considered as a simplification of the Migdal approximation. The amount of the discontinuity at the Fermi momentum is obtained and the numerical results show that there is a distinct modification of the electron distribution near the Fermi momentum due to the presence of the electron-phonon interaction.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
