The TFD treatment of the quasiparticle-phonon interaction at finite temperature

Kosov, D.S., and Vdovin, A.I. (1994) The TFD treatment of the quasiparticle-phonon interaction at finite temperature. Modern Physics Letters A, 9 (19). pp. 1735-1743.

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The coupling of elementary excitation modes in hot nuclei is studied. For this aim the quasiparticle-phonon nuclear model (QPM) is extended to a finite temperature by using the formalism of the thermofield dynamics. First the energies and structures of one-phonon states are calculated in the thermal random phase approximation and then the thermal QPM Hamiltonian H(QPM) is expressed in terms of thermal quasiparticles and thermal RPA-phonons. The equation for the energies taking into account mixing of one-and two-thermal phonon states is derived. The expression of the coupling matrix element between thermal phonons is given.

Item ID: 27304
Item Type: Article (Research - C1)
ISSN: 1793-6632
Date Deposited: 27 Feb 2017 22:23
FoR Codes: 02 PHYSICAL SCIENCES > 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics > 020202 Nuclear Physics @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 100%
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