Holstein magneto-polarons: from Landau levels to Hofstadter butterflies

Details Holstein magneto-polarons: from Landau levels to Hofstadter butterflies Holstein magneto-polarons: from Landau levels to Hofstadter butterflies

2010-11-09

arxiv.org/abs/1011.1965v1

Phys. Rev. B 82, 201102(R) (2010)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

We study the Holstein polaron in transverse magnetic field using non-perturbational methods. At strong fields and large coupling, we show that the polaron has a Hofstadter spectrum, however very distorted and of lower symmetry than that of a (heavier) bare particle. For weak magnetic fields, we identify non-perturbational behaviour of the Landau levels not previously known.

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