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Teoreticheskaya i Matematicheskaya Fizika, 1985, Volume 64, Number 1, Pages 69–81
(Mi tmf4903)
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This article is cited in 1 scientific paper (total in 1 paper)
System of equations of the quasiparticle-phonon nuclear model with allowance for phonon scattering at finite temperature
Nguyen Din Dang
Abstract:
The formalism of the quasiparticle-phonon nuclear model, which describes interaction
with $(2p-2h)$ configurations, is developed for the case of a finite temperature. With
exact allowance made for the population numbers of the single-phonon levels, a system
of coupled equations is obtained for the Green's functions with the propagators of transition
from one to two phonons and vice versa, for the phonon correlations in the ground state,
and for phonon scattering. A one-to-one correspondence is established between this
system and the system of equations for the coefficients of the wave function of an excited
state in the quasiparticle-phonon model at finite temperature. The effect of phonon
scattering is estimated numerically, and the diagrams summed in the quasiparticle-phonon
model in this case are compared with the diagrams of other approaches.
Received: 23.07.1984
Citation:
Nguyen Din Dang, “System of equations of the quasiparticle-phonon nuclear model with allowance for phonon scattering at finite temperature”, TMF, 64:1 (1985), 69–81; Theoret. and Math. Phys., 64:1 (1985), 692–700
Linking options:
https://www.mathnet.ru/eng/tmf4903 https://www.mathnet.ru/eng/tmf/v64/i1/p69
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