論文

査読有り
2018年4月12日

Comparative study of the requantization of the time-dependent mean field for the dynamics of nuclear pairing

Physical Review C
  • Fang Ni
  • ,
  • Takashi Nakatsukasa

97
4
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevC.97.044310
出版者・発行元
American Physical Society

To describe quantal collective phenomena, it is useful to requantize the time-dependent mean-field dynamics. We study the time-dependent Hartree-Fock-Bogoliubov (TDHFB) theory for the two-level pairing Hamiltonian, and compare results of different quantization methods. The one constructing microscopic wave functions, using the TDHFB trajectories fulfilling the Einstein-Brillouin-Keller quantization condition, turns out to be the most accurate. The method is based on the stationary-phase approximation to the path integral. We also examine the performance of the collective model which assumes that the pairing gap parameter is the collective coordinate. The applicability of the collective model is limited for the nuclear pairing with a small number of single-particle levels, because the pairing gap parameter represents only a half of the pairing collective space.

リンク情報
DOI
https://doi.org/10.1103/PhysRevC.97.044310
ID情報
  • DOI : 10.1103/PhysRevC.97.044310
  • ISSN : 2469-9993
  • ISSN : 2469-9985
  • SCOPUS ID : 85045399281

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