Theoretical Condensed Matter Physics
These observations serve as motivation for the theoretical study of the effects of generalized electron-phonon coupling in multiband systems. Novel multicomponent polarons--"vector polarons"-- have been found to exist in such systems. They are mathematically related to soliton solutions of coupled non-linear Schrodinger equations that have been previously studied in many different contexts such as nonlinear optics (propagation of light in birefringent optical fibers) and atomic physics (spinor Bose-Einstein condensation).
Vector polarons, together with a many-electron Q-ball-like excited state called a Jahn-Teller soliton, serve as examples that systems containing electronic and vibrational degeneracy can support novel states through local Jahn-Teller interactions.
Last modified June 08 2007 05:16 PM