Small Polaron Formation in Strongly Correlated Electronic Systems
| ISSN: |
1572-9605
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|---|---|
| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Electrical Engineering, Measurement and Control Technology
Physics
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| Notes: |
Abstract We study the crossover to small polarons in the Holstein model for finitedensities in presence of strong electronic correlations. The small polaronformation condition λ〉1, which holds for a single particle in theadiabatic regime ω0/t≪1 is generalized to the many particle case bymeans of simple physical arguments. It is shown that a general criterion canbe formulated for polaron formation, provided that incoherent 1/λcorrections are taken into account.
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| Type of Medium: |
Electronic Resource
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| URL: |