Abstract
A concise approach for the calculations of the ground-state energy in strongly bound exciton-phonon systems is presented in this paper. The coherent state with two-phonon correlation is introduced to represent the phonon wave function, which is related to the wave function of the relative motion \ensuremath{\varphi}(r). A nonlinear integro-differential equation satisfied by \ensuremath{\varphi}(r) is derived. Numerical calculations are carried out for several strongly and intermediate-bound polar materials and the ground-state energy of the corresponding excitons is found to be close to the experimental one. \textcopyright{} 1996 The American Physical Society.
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.
