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

J. Takahashi, R. Katsuragi, Y. Kazama, Y. Nakamura, Y. Yamanaka, S. Ohkubo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of the 4th International Workshop on State of the Art in Nuclear Cluster Physics, SOTANCP 2018
EditorsCharles M. Folden, Vladilen Z. Goldberg, Grigory V. Rogachev, Marina Barbui
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417649
DOIs
Publication statusPublished - 2018 Nov 13
Event4th International Workshop on State of the Art in Nuclear Cluster Physics, SOTANCP 2018 - Galveston, United States
Duration: 2018 May 132018 May 18

Publication series

NameAIP Conference Proceedings
Volume2038
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other4th International Workshop on State of the Art in Nuclear Cluster Physics, SOTANCP 2018
CountryUnited States
CityGalveston
Period18/5/1318/5/18

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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