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, Cheng; Weichselbaum, Andreas; Kehrein, Stefan; Xiang, Tao ; von Delft, Jan; Guo, C , Arnold Sommerfeld Ctr Theoret Phys, Dept Phys, D-80333 Munich, Germany
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| 刊名 | PHYSICAL REVIEW B
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| 出版日期 | 2009 |
| 卷号 | 79期号:11页码:- |
| 关键词 | Dynamics System |
| ISSN号 | 1098-0121 |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000264768900064 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5358]  |
| 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 | Guo, C , Arnold Sommerfeld Ctr Theoret Phys, Dept Phys, D-80333 Munich, Germany |
| 推荐引用方式 GB/T 7714 | Guo, Cheng,Weichselbaum, Andreas,Kehrein, Stefan,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, Cheng,Weichselbaum, Andreas,Kehrein, Stefan,Xiang, Tao,von Delft, Jan,&Guo, C , Arnold Sommerfeld Ctr Theoret Phys, Dept Phys, D-80333 Munich, Germany.(2009).Density matrix renormalization group study of a quantum impurity model with Landau-Zener time-dependent Hamiltonian.PHYSICAL REVIEW B,79(11),-. |
| MLA | Guo, Cheng,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：理论物理研究所
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