Convergence of high order perturbative expansions in open system quantum dynamics
文献类型：期刊论文
| 作者 | Xu, Meng; Song, Linze; Song, Kai; Shi, Qiang1 |
| 刊名 | JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2017-02-14 |
| 卷号 | 146期号:6 |
| 英文摘要 | We propose a new method to directly calculate high order perturbative expansion terms in open system quantum dynamics. They are first written explicitly in path integral expressions. A set of differential equations are then derived by extending the hierarchical equation of motion (HEOM) approach. As two typical examples for the bosonic and fermionic baths, specific forms of the extended HEOM are obtained for the spin-boson model and the Anderson impurity model. Numerical results are then presented for these two models. General trends of the high order perturbation terms as well as the necessary orders for the perturbative expansions to converge are analyzed. Published by AIP Publishing. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38292]  |
| 专题 | 化学研究所_分子动态与稳态结构实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Meng,Song, Linze,Song, Kai,et al. Convergence of high order perturbative expansions in open system quantum dynamics[J]. JOURNAL OF CHEMICAL PHYSICS,2017,146(6). |
| APA | Xu, Meng,Song, Linze,Song, Kai,&Shi, Qiang.(2017).Convergence of high order perturbative expansions in open system quantum dynamics.JOURNAL OF CHEMICAL PHYSICS,146(6). |
| MLA | Xu, Meng,et al."Convergence of high order perturbative expansions in open system quantum dynamics".JOURNAL OF CHEMICAL PHYSICS 146.6(2017). |
入库方式： OAI收割
来源：化学研究所
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