Density matrix renormalization group study of a quantum impurity model with Landau-Zener time-dependent Hamiltonian
文献类型：期刊论文
| 作者 | Guo, C ; Weichselbaum, A ; Kehrein, S ; Xiang, T ; von Delft, J |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2009 |
| 卷号 | 79期号:11 |
| 关键词 | DYNAMICS SYSTEM |
| ISSN号 | 1098-0121 |
| 通讯作者 | Guo, C: Arnold Sommerfeld Ctr Theoret Phys, Dept Phys, D-80333 Munich, Germany. |
| 中文摘要 | We use the adaptive time-dependent density matrix renormalization group method (t-DMRG) to study the nonequilibrium dynamics of a benchmark quantum impurity system which has a time-dependent Hamiltonian. This model is a resonant-level model, obtained by a mapping from a certain Ohmic spin-boson model describing the dissipative Landau-Zener transition. We map the resonant-level model onto a Wilson chain, then calculate the time-dependent occupation n(d)(t) of the resonant level. We compare t-DMRG results with exact results at zero temperature and find very good agreement. We also give a physical interpretation of the numerical results. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/35719]  |
| 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 | Guo, C,Weichselbaum, A,Kehrein, S,et al. Density matrix renormalization group study of a quantum impurity model with Landau-Zener time-dependent Hamiltonian[J]. PHYSICAL REVIEW B,2009,79(11). |
| APA | Guo, C,Weichselbaum, A,Kehrein, S,Xiang, T,&von Delft, J.(2009).Density matrix renormalization group study of a quantum impurity model with Landau-Zener time-dependent Hamiltonian.PHYSICAL REVIEW B,79(11). |
| MLA | Guo, C,et al."Density matrix renormalization group study of a quantum impurity model with Landau-Zener time-dependent Hamiltonian".PHYSICAL REVIEW B 79.11(2009). |
入库方式： OAI收割
来源：物理研究所
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