A variational approach to the polaron problem

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, , Citation N Tokuda 1980 J. Phys. C: Solid State Phys. 13 L851 DOI 10.1088/0022-3719/13/30/006

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1 Dept. of Engng. Sci., Hokkaido Univ., Sapporo, Japan

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0022-3719/13/30/L851

Abstract

The optical and the piezoelectric polarons are investigated within the scheme of variational approach based on the unitary transformation and the method of a Lagrange multiplier. The method is found to be valid in both the weak- and the strong-coupling regimes.

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