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تسجيل مستخدم جديدHolstein magneto-polarons: from Landau levels to Hofstadter butterflies
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Mona Berciu
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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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