Quantum chaotic motion of a single particle in heavy nuclei
文献类型：期刊论文
| 作者 | Gu, JZ; Wu, XZ; Zhou, YZ; Zhao, EG ; Gu, JZ , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
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| 刊名 | NUCLEAR PHYSICS A
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| 出版日期 | 1997 |
| 卷号 | 625期号:3页码:621-632 |
| 关键词 | Shell-model Statistical Properties Energy-levels Fluctuations Potentials Spectrum Behavior Physics |
| ISSN号 | 0375-9474 |
| 英文摘要 | In the framework of the two-center shell model we calculate the nearest neighbor level spacing distribution and spectral rigidity of single-particle energy levels of heavy nuclei when the shape parameters are changed systematically, In the two cases of the single-particle Hamiltonian with and without the spin-orbit coupling l.s and square angular momentum l(2) terms, the shape parameter regions are determined respectively, in which both of the spacing distribution and spectral rigidity approach the predictions of the Gaussian orthogonal ensemble of random matrix theory, In both cases it is shown that a considerable octupole-like deformation is necessary to induce the chaotic single-particle motion, Moreover, the occurrence of the chaotic motion not only appears in the heavy nuclei with oblate shapes but also in prolate ones with a proper neck. The neck appreciably influences the occurrence of the chaotic motion when the separation between the two centers is medium or larger It is exhibited that the level repulsion which is strongly related to the nuclear deformation governs the regularity (chaoticity) of the single-particle motion. We find that the l.s term obviously favors the chaotic motion, however, the l(2) term only slightly affects the chaotic motion, In addition, it is implied that when the two terms are taken into account, the chaotic motion occurs even in very elongated nuclei, (C) 1997 Elsevier Science B.V. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12409]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Gu, JZ , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA. |
| 推荐引用方式 GB/T 7714 | Gu, JZ,Wu, XZ,Zhou, YZ,et al. Quantum chaotic motion of a single particle in heavy nuclei[J]. NUCLEAR PHYSICS A,1997,625(3):621-632. |
| APA | Gu, JZ,Wu, XZ,Zhou, YZ,Zhao, EG,&Gu, JZ , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA..(1997).Quantum chaotic motion of a single particle in heavy nuclei.NUCLEAR PHYSICS A,625(3),621-632. |
| MLA | Gu, JZ,et al."Quantum chaotic motion of a single particle in heavy nuclei".NUCLEAR PHYSICS A 625.3(1997):621-632. |
入库方式： OAI收割
来源：理论物理研究所
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