New description to soft modes in N-alpha cluster states as Bose-Einstein condensation based on quantum field theory with zero mode excitation

Junichi Takahashi, R. Katsuragi, Y. Kazama, Y. Nakamura, Yoshiya Yamanaka, S. Ohkubo

    研究成果: Conference contribution

    抜粋

    In this paper, we consider the Nα cluster state as Bose-Einstein condensation and calculate the energy level for Nα nuclei from 12C-52Fe. We take the phenomenological model, and use the quantum field theoretical approach for finite system with spontaneous symmetry breaking. In our approach, the order parameter that is the density amplitude of Bose-Einstein condensation is introduced as the vacuum expectation value of the field operator. We non-perturbatively treat the zero mode operators, which accompany the spontaneous symmetry breaking and the order parameter, because their quantum fluctuations are large for finite system. Then the Hamiltonian for the zero mode operators gives a new type of energy levels with 0+ for Nα nuclei, which turn out to be robust for condensation rate and number of α clusters.

    元の言語English
    ホスト出版物のタイトルProceedings of the 4th International Workshop on State of the Art in Nuclear Cluster Physics, SOTANCP 2018
    編集者Charles M. Folden, Vladilen Z. Goldberg, Grigory V. Rogachev, Marina Barbui
    出版者American Institute of Physics Inc.
    2038
    ISBN(電子版)9780735417649
    DOI
    出版物ステータスPublished - 2018 11 13
    イベント4th International Workshop on State of the Art in Nuclear Cluster Physics, SOTANCP 2018 - Galveston, United States
    継続期間: 2018 5 132018 5 18

    Other

    Other4th International Workshop on State of the Art in Nuclear Cluster Physics, SOTANCP 2018
    United States
    Galveston
    期間18/5/1318/5/18

      フィンガープリント

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    これを引用

    Takahashi, J., Katsuragi, R., Kazama, Y., Nakamura, Y., Yamanaka, Y., & Ohkubo, S. (2018). New description to soft modes in N-alpha cluster states as Bose-Einstein condensation based on quantum field theory with zero mode excitation. : C. M. Folden, V. Z. Goldberg, G. V. Rogachev, & M. Barbui (版), Proceedings of the 4th International Workshop on State of the Art in Nuclear Cluster Physics, SOTANCP 2018 (巻 2038). [020024] American Institute of Physics Inc.. https://doi.org/10.1063/1.5078843