Abstract
The diagrammatic technique is used to find the mass operator, whose use in solving the dispersion equation determines the dependence of the energy of the ground state of a polaron on the arbitrary value of the coupling constant α.
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Translated from Izvestiya Vysshykh Uchebnykh Zavedenii, Fizika, No. 8, pp. 71–77, August, 1984.
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Tkach, N.V., Lopushanskaya, N.V. Polaron with an arbitrary coupling force. Soviet Physics Journal 27, 688–692 (1984). https://doi.org/10.1007/BF00893115
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DOI: https://doi.org/10.1007/BF00893115