Path integral method for tunneling of spin systems and the macroscopic quantum effect of magnetization
文献类型：期刊论文
| 作者 | Zhang, YB ; Pu, FC ; Liang, JQ |
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 1999 |
| 卷号 | 31期号:4页码:517 |
| 关键词 | FERROMAGNETIC PARTICLES RESONANCE EXPERIMENTS POWER ABSORPTION EXCITED-STATES COHERENCE SPHALERONS CIRCLE |
| ISSN号 | 0253-6102 |
| 通讯作者 | Zhang, YB (reprint author), Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | The quantum tunneling effect in a ferromagnetic particle which can be evaluated only for the ground state previously is extended to excited states within the framework of instanton method. The tunneling between n-th degenerate states of neighboring wells is dominated by a periodic pseudoparticle configuration with which a formula of level-splitting valid for entire energy region is derived. In low energy region periodic instanton results coincide exactly with those derived through the LSZ reduction procedure. The tunneling effect increases at excited states. These results should be useful in further investigation of phase transition problem in ferromagnetic particles. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50601]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang, YB,Pu, FC,Liang, JQ. Path integral method for tunneling of spin systems and the macroscopic quantum effect of magnetization[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1999,31(4):517. |
| APA | Zhang, YB,Pu, FC,&Liang, JQ.(1999).Path integral method for tunneling of spin systems and the macroscopic quantum effect of magnetization.COMMUNICATIONS IN THEORETICAL PHYSICS,31(4),517. |
| MLA | Zhang, YB,et al."Path integral method for tunneling of spin systems and the macroscopic quantum effect of magnetization".COMMUNICATIONS IN THEORETICAL PHYSICS 31.4(1999):517. |
入库方式： OAI收割
来源：物理研究所
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