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Effective Electron‐Hole Interaction in Molecular Crystals (I)
Author(s) -
Petelenz P.
Publication year - 1976
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220730223
Subject(s) - exciton , hamiltonian (control theory) , electron , electron hole , interaction energy , unitary transformation , physics , effective nuclear charge , condensed matter physics , hamiltonian matrix , chemistry , atomic physics , quantum mechanics , molecular physics , molecule , mathematical optimization , mathematics , eigenvalues and eigenvectors , symmetric matrix , quantum
An effective electron‐hole interaction is investigated which arises due to the one‐particle exciton dissociation matrix elements of the Hamiltonian. Fröhlich‐type unitary transformation is adopted and the transformed Hamiltonian is discussed. The exciton energy is renormalized. The sign and absolute value of the effective electron‐hole interaction is revealed to depend on the energy difference between the neutral exciton and charge transfer states. The influence of the vibronic coupling is also investigated.