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 TMF, 1975, Volume 22, Number 3, Pages 406–411 (Mi tmf3693)

Collective excitations of finite fermi systems in the region of a phase transition

V. V. Mazepus

Abstract: Analytical solution of the two-level model with pair formations in the region of phase transition, which is valid at large particle numbers, is found. Assuming the universal character of certain properties of this solution, the scheme of constructing the collective Hamiltonian in the transition region is developed for many-level system on the basis of the generalized density matrix method. As an illustration, the phase transition in a system with monopole interaction is considered.

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English version:
Theoretical and Mathematical Physics, 1975, 22:3, 285–289

Citation: V. V. Mazepus, “Collective excitations of finite fermi systems in the region of a phase transition”, TMF, 22:3 (1975), 406–411; Theoret. and Math. Phys., 22:3 (1975), 285–289

Citation in format AMSBIB
\Bibitem{Maz75} \by V.~V.~Mazepus \paper Collective excitations of finite fermi systems in the region of a~phase transition \jour TMF \yr 1975 \vol 22 \issue 3 \pages 406--411 \mathnet{http://mi.mathnet.ru/tmf3693} \transl \jour Theoret. and Math. Phys. \yr 1975 \vol 22 \issue 3 \pages 285--289 \crossref{https://doi.org/10.1007/BF01037805}