A higher-order Skyrme model
文献类型：期刊论文
| 作者 | Gudnason, Sven Bjarke2; Nitta, Muneto1,3 |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2017-09-07 |
| 卷号 | 2017期号:9页码:42 |
| 关键词 | Effective Field Theories Sigma Models Solitons Monopoles and Instantons |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/JHEP09(2017)028 |
| 英文摘要 | We propose a higher-order Skyrme model with derivative terms of eighth, tenth and twelfth order. Our construction yields simple and easy-to-interpret higher-order Lagrangians. We first show that a Skyrmion with higher-order terms proposed by Marleau has an instability in the form of a baby-Skyrmion string, while the static energies of our construction are positive definite, implying stability against time-independent perturbations. However, we also find that the Hamiltonians of our construction possess two kinds of dynamical instabilities, which may indicate the instability with respect to time-dependent perturbations. Different from the well-known Ostrogradsky instability, the instabilities that we find are intrinsically of nonlinear nature and also due to the fact that even powers of the inverse metric gives a ghost-like higher-order kinetic-like term. The vacuum state is, however, stable. Finally, we show that at sufficiently low energies, our Hamiltonians in the simplest cases, are stable against time-dependent perturbations. |
| WOS关键词 | CURRENT-ALGEBRA ; QCD |
| 资助项目 | Recruitment Program of High-end Foreign Experts ; National Natural Science Foundation of China[11675223] ; Ministry of Education, Culture, Sports, Science (MEXT) of Japan[15H05855] ; Japan Society for the Promotion of Science (JSPS)[16H03984] ; MEXT-Supported Program for the Strategic Research Foundation at Private Universities[S1511006] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000411023500003 |
| 出版者 | SPRINGER |
| 资助机构 | Recruitment Program of High-end Foreign Experts ; National Natural Science Foundation of China ; Ministry of Education, Culture, Sports, Science (MEXT) of Japan ; Japan Society for the Promotion of Science (JSPS) ; MEXT-Supported Program for the Strategic Research Foundation at Private Universities |
| 源URL | [http://119.78.100.186/handle/113462/45635]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Gudnason, Sven Bjarke |
| 作者单位 | 1.Keio Univ, Dept Phys, Hiyoshi 4-1-1, Yokohama, Kanagawa 2238521, Japan 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 3.Keio Univ, Res & Educ Ctr Nat Sci, Hiyoshi 4-1-1, Yokohama, Kanagawa 2238521, Japan |
| 推荐引用方式 GB/T 7714 | Gudnason, Sven Bjarke,Nitta, Muneto. A higher-order Skyrme model[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017,2017(9):42. |
| APA | Gudnason, Sven Bjarke,&Nitta, Muneto.(2017).A higher-order Skyrme model.JOURNAL OF HIGH ENERGY PHYSICS,2017(9),42. |
| MLA | Gudnason, Sven Bjarke,et al."A higher-order Skyrme model".JOURNAL OF HIGH ENERGY PHYSICS 2017.9(2017):42. |
入库方式： OAI收割
来源：近代物理研究所
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