Interplay between dispersive and non-dispersive modes in the polaron problem
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چکیده
منابع مشابه
Interplay between dispersive and non-dispersive modes in the polaron problem
We study the influence of the phonon spectrum on polaron formation and show that three self-trapping regimes can occur. If the lattice and the electronlattice Hamiltonians are dominated by the same type of phonons, the selftrapping transition is smooth. If there is an imbalance, the transition can either be abrupt or completely eliminated. The binding energies are larger in the case of imbalanc...
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ژورنال
عنوان ژورنال: Physics Letters A
سال: 2000
ISSN: 0375-9601
DOI: 10.1016/s0375-9601(00)00029-3