Acceleration of the Stochastic Analytic Continuation Method via an Orthogonal Polynomial Representation of the Spectral Function
文献类型：期刊论文
| 作者 | Wu, QS ; Wang, YL ; Fang, Z ; Dai, X |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2013 |
| 卷号 | 30期号:9 |
| ISSN号 | 0256-307X |
| 通讯作者 | Dai, X (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Stochastic analytic continuation is an excellent numerical method for analytically continuing Green's functions from imaginary frequencies to real frequencies, although it requires significantly more computational time than the traditional MaxEnt method. We develop an alternate implementation of stochastic analytic continuation which expands the dimensionless field n(x) introduced by Beach using orthogonal polynomials. We use the kernel polynomial method (KPM) to control the Gibbs oscillations associated with truncation of the expansion in orthogonal polynomials. Our KPM variant of stochastic analytic continuation delivers improved precision at a significantly reduced computational cost. |
| 资助信息 | National Natural Science Foundation of China; National Basic Research Program of China [2007CB925000] |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/56757]  |
| 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 | Wu, QS,Wang, YL,Fang, Z,et al. Acceleration of the Stochastic Analytic Continuation Method via an Orthogonal Polynomial Representation of the Spectral Function[J]. CHINESE PHYSICS LETTERS,2013,30(9). |
| APA | Wu, QS,Wang, YL,Fang, Z,&Dai, X.(2013).Acceleration of the Stochastic Analytic Continuation Method via an Orthogonal Polynomial Representation of the Spectral Function.CHINESE PHYSICS LETTERS,30(9). |
| MLA | Wu, QS,et al."Acceleration of the Stochastic Analytic Continuation Method via an Orthogonal Polynomial Representation of the Spectral Function".CHINESE PHYSICS LETTERS 30.9(2013). |
入库方式： OAI收割
来源：物理研究所
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