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Density matrix renormalization group study of a quantum impurity model with Landau-Zener time-dependent Hamiltonian
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
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号79期号:11页码:-
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.
部门归属[Guo, C; Weichselbaum, A; Kehrein, S; von Delft, J] Arnold Sommerfeld Ctr Theoret Phys, Dept Phys, D-80333 Munich, Germany; [Guo, C; Weichselbaum, A; Kehrein, S; von Delft, J] Univ Munich, Ctr NanoSci, D-80333 Munich, Germany; [Guo, C; Xiang, T] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; [Xiang, T] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
关键词Dynamics System
学科领域Physics
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收录类别SCI
WOS记录号WOS:000264768900064
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被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5358
专题1978-2010年知识产出
通讯作者Guo, C , Arnold Sommerfeld Ctr Theoret Phys, Dept Phys, D-80333 Munich, Germany
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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):-.
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