欢迎登录材料期刊网

材料期刊网

高级检索

通过观察和分析重核和超重核中量子谱的统计性质, 研究有限物理体系中量子混沌的一些问题. 介绍了原子核中量子谱显示的有序-混沌现象随激发能变化的实验数据, 研究了超重核体系中量子谱相邻能级间距分布的规则性随体系的依赖关系, 并预言了稳定的超重体系. 给出了原子核有序混沌相变现象与原子核形变以及原子核转动的依赖关系, 讨论了量子体系中的对效应对有序-混沌相变的影响. 最后, 用有序-混沌相变的概念解释和理解了核物理中一些重要的实验现象.

参考文献

[1] Nguyen Dinh Dang, Dynamic Wu Xizhen, Sakata Fumihiko, et al. Realization of Statistical State in Finite Systems[J]. Phys Rev, 1996, C53: 1 233-1 244.
[2] Weidenmuller Hans A. Statistical Theory of Nuclear Reaction s and the Gaussian Othogonal Ensamble[J]. Annals of Physics, 1984, 158: 120-141.
[3] Hag R U, Pandey A, Bohigas O. Fluctuation Properties of Nuclear Energy Levels: Do theory and experiment agree?[J]. Phys Rev Lett, 1982, 48: 1 086-1 08 9.
[4] Wu Xizhen, Gu Jianzhong, Iwamoto Ahira. Statistical Proper ties of Quasiparticle Spectra in Deformed Nuclei[J]. Phys Rev, 1999, C59: 215-220.
[5] Garrett J D, Robinson J Q, Foglia A J, et al. Nucl ear Level Repulsion and Order vs Chaos [J]. Phys Lett, 1997, B392: 24-29.
[6] Bohigas O, Hag R U, Pandy A. Fluctuation Properties of Nucl ear Energy Levels and Widths Comparison of Theory with Experiment[C]. In Nuclear Data for Science and Te chnology, In: Bockhoff K H ed. Dordrecht: Reidel, 1983, 809-813.
[7] Wu Xizhen, Li Zhuxia, Wang Ning, et al. S tatistical Behaviors of Quantum Spectra in Superheavy Nuclei [J]. To be publ ished.
[8] Kruppa A T, Bender M, Nazrewicz W, et al. Shell Correction of S uperheavy Nuclei in Self-consistent Calculations [J]. Phys Rev, 2000, C61: 034313-1-034313-13.
[9] Bender M, Rutz K, Reinhard P G, et al. Shell Struct ure of Sup erheavy Nuclei in Self-consistent Mean-field Μodels [J]. Phys Rev, 1999, C60: 034304-1-034304-20.
[10] Heiss W D, Nazmitdinov R G, Radu. Chaos in Axially S ymmetric Potentials with Octupole Deformation [J]. Phys Rev Lett, 1994, 72: 2 351-2 354.
[11] Wu Xizhen, Gu Jianzhong, Zhuo Yizhong, et al.Posible Understanding of Hyperdeformed 144-146Ba Nuclei Appearing in t he Spontaneous Fission of 252Cf [J]. Phys Rev Lett, 1997, 79: 4 542-4 545.
[12] Ter-Akopian G M, Hamilton J M, Oganessian Yu Ts, et al. New Spontaneous Fission Mode for 252Cf: Indication of hyperdeformed 144,145Ba at scission [J]. Phys Rev Lett, 1996, 77: 32-35.
[13] Adamian G G, Antonenko N V, Ivanova S P, et al. Problems in Description of Fusion of Heavy Nuclei in the Two-center Shell Model Approa ch [J]. Nucl Phys, 1999, A646: 29-52.
[14] Hofmann Helmut. A Quantal Transport Theory for Nuclear Col lective Motion: T he metrits of a locally harmonic approximation method [J]. Phys Rep, 1997, 284: 139-380.
[15] Gu Jianzhong, Wu Xizhen, Zhuo Yizhong. Quantum Chaotic Motion of a Sin gle Particle in Heavy Nuclei [J]. Nucl Phys, 1997, A625: 621-632.
[16] Gu Jianzhong, Wu Xizhen, Zhuo Yizhong. The Single-particl e Spectrum and Its Spacing and Curvature Distributions in Rotating Heavy Nuclei [J]. Nucl Phys, 1996, A61 1: 315-331.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%