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The Exciton‐Biexciton Spectrum Renormalization in the Presence of a Polariton Pumping Wave. The New Mechanism, Exciton Level Shift, and ABC Problem
Author(s) -
Ivanov A. L.,
Panashchenko V. V.
Publication year - 1990
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.2221590148
Subject(s) - biexciton , exciton , coulomb , renormalization , physics , condensed matter physics , semiconductor , quantum mechanics , electron
A new mechanism of the exciton‐biexciton spectrum renormalization determined by direct virtual coupling of excitons to the biexciton owing to exciton‐exciton Coulomb interaction is proposed. Exciton and biexciton shifts depending on pumping intensity are obtained. The macroscopic equations are derived and the ABC‐problem considered. The reflection spectra modification for CdS semiconductor was calculated.