Abstract
The problem of renormalization of the double-time Green function method for response functions is treated in the framework of the Mori-theory for the special case of Fermi liquids and finite Fermi systems. It is shown that the quasiparticle-quasihole renormalization of the response function can be carried out under conditions which are physically equivalent to the conditions under which the quasiparticle-quasihole renormalization is performed in the many-time Green function theory of Fermi liquids.
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Werner, E. Quasiparticle renormalization of the memory function approach for response functions. Z Physik B 28, 109–116 (1977). https://doi.org/10.1007/BF01325449
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DOI: https://doi.org/10.1007/BF01325449