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This article is cited in 7 scientific papers (total in 7 papers)
CONDENSED MATTER
Third order anharmonic effects in many-body nuclear quantum theory
S. P. Kamerdzhiev, M. I. Shitov National Research Center Kurchatov Institute, Moscow, Russia
Abstract:
The quantum theory of third order anharmonic effects in the photon production amplitude developed by V.A. Khodel has been generalized for nuclei with pairing and for a more accurate description of low-energy collective phonons. An expression for the transition amplitude between two- and one-phonon states has been obtained. This expression has been compared to the solution of a similar problem considered within the quasiparticle-phonon model. It has been shown that this approach describes a number of new effects, including three- and four-quasiparticle correlations in the ground state (backward-going graphs).
Received: 25.10.2018 Revised: 14.11.2018 Accepted: 15.11.2018
Citation:
S. P. Kamerdzhiev, M. I. Shitov, “Third order anharmonic effects in many-body nuclear quantum theory”, Pis'ma v Zh. Èksper. Teoret. Fiz., 109:1 (2019), 65–71; JETP Letters, 109:1 (2019), 69–75
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https://www.mathnet.ru/eng/jetpl5794 https://www.mathnet.ru/eng/jetpl/v109/i1/p65
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Abstract page: | 163 | Full-text PDF : | 25 | References: | 24 | First page: | 1 |
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