ON THE TFD TREATMENT OF COLLECTIVE VIBRATIONS IN HOT NUCLEI

• DOI: 10.1142/s0218301309013695
• Publication Date: 2009-09-10T08:22:31Z
• Authors: ALAN A. DZHIOEV; A. I. VDOVIN
• Keywords: Hamiltonian (control theory); Formalism (music)

The approach in a theory of collective excitations hot nuclei exploring the formalism thermo field dynamics and model Hamiltonian consisting mean field, BCS paring interaction long-range particle-hole effective forces is reexamined. In contrast with earlier studies it found that wave function thermal phonon depended not only on Fermi-Dirac occupation numbers Bogoliubov quasiparticles but Bose as well. This strongly affects couplings due to renormalizing phonon-phonon enlarging number two-phonon configurations coupled one-phonon ones. Moreover, shown formulation double tilde conjugation rule for fermions proposed by I.Ojima more appropriate context present study than original one H.Umezawa coworkers.