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Analytic peculiarities of the polaron mass operator in the first two orders of the coupling constant

The exact analytic expression for the polaron mass operator in the second order of the coupling constant is established for the first time. It holds in the whole energy scale. The peculiarities of the mass operator are analysed. The renormalized polaron energy spectrum is obtained and analysed in...

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Bibliographic Details
Main Authors: Tkach, M., Voitsekhivska, O., Val', O.
Format: Article
Language:English
Published: Інститут фізики конденсованих систем НАН України 1998
Series:Condensed Matter Physics
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/118934
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