Abstract
The method of extension of quasiparticle-phonon nuclear model to describe hot nuclei is proposed. For this aim the formalism of the thermo field dynamics is used. Following the main principles of the TFD we express the Hamiltonian of the QPM in terms of thermal quasiparticles. The coefficients of the corresponding transformation are determined by minimizing the grand thermodynamical potential of a hot nucleus in the thermal vacuum state. Then the RPA part of the thermal QPM Hamiltonian is extracted and the RPA equations are derived. They are in the agreement with the RPA equations derived by the Green function method and the equation of motion method. (author.). 15 refs.
Citation Formats
Vdovin, A I, and Kosov, D S.
The thermo field transformation in the quasiparticle-phonon nuclear model.
JINR: N. p.,
1993.
Web.
Vdovin, A I, & Kosov, D S.
The thermo field transformation in the quasiparticle-phonon nuclear model.
JINR.
Vdovin, A I, and Kosov, D S.
1993.
"The thermo field transformation in the quasiparticle-phonon nuclear model."
JINR.
@misc{etde_10157396,
title = {The thermo field transformation in the quasiparticle-phonon nuclear model}
author = {Vdovin, A I, and Kosov, D S}
abstractNote = {The method of extension of quasiparticle-phonon nuclear model to describe hot nuclei is proposed. For this aim the formalism of the thermo field dynamics is used. Following the main principles of the TFD we express the Hamiltonian of the QPM in terms of thermal quasiparticles. The coefficients of the corresponding transformation are determined by minimizing the grand thermodynamical potential of a hot nucleus in the thermal vacuum state. Then the RPA part of the thermal QPM Hamiltonian is extracted and the RPA equations are derived. They are in the agreement with the RPA equations derived by the Green function method and the equation of motion method. (author.). 15 refs.}
place = {JINR}
year = {1993}
month = {Dec}
}
title = {The thermo field transformation in the quasiparticle-phonon nuclear model}
author = {Vdovin, A I, and Kosov, D S}
abstractNote = {The method of extension of quasiparticle-phonon nuclear model to describe hot nuclei is proposed. For this aim the formalism of the thermo field dynamics is used. Following the main principles of the TFD we express the Hamiltonian of the QPM in terms of thermal quasiparticles. The coefficients of the corresponding transformation are determined by minimizing the grand thermodynamical potential of a hot nucleus in the thermal vacuum state. Then the RPA part of the thermal QPM Hamiltonian is extracted and the RPA equations are derived. They are in the agreement with the RPA equations derived by the Green function method and the equation of motion method. (author.). 15 refs.}
place = {JINR}
year = {1993}
month = {Dec}
}