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DOI | 10.1038/s41467-019-12603-w |
Optimal free descriptions of many-body theories | |
Turner, Christopher J.; Meichanetzidis, Konstantinos; Papic, latko; Pachos, Jiannis K. | |
2019-10-21 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | Interacting bosons or fermions give rise to some of the most fascinating phases of matter, including high-temperature superconductivity, the fractional quantum Hall effect, quantum spin liquids and Mott insulators. Although these systems are promising for technological applications, they also present conceptual challenges, as they require approaches beyond mean-field and perturbation theory. Here we develop a general framework for identifying the free theory that is closest to a given interacting model in terms of their ground-state correlations. Moreover, we quantify the distance between them using the entanglement spectrum. When this interaction distance is small, the optimal free theory provides an effective description of the low-energy physics of the interacting model. Our construction of the optimal free model is non-perturbative in nature; thus, it offers a theoretical framework for investigating strongly correlated systems. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398346700001 |
WOS关键词 | ENTANGLED PAIR STATES ; MATRIX PRODUCT STATES ; QUANTUM ; PARAFERMIONS ; SYSTEMS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204606 |
专题 | 资源环境科学 |
作者单位 | Univ Leeds, Sch Phys & Astron, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England |
推荐引用方式 GB/T 7714 | Turner, Christopher J.,Meichanetzidis, Konstantinos,Papic, latko,et al. Optimal free descriptions of many-body theories[J]. NATURE COMMUNICATIONS,2019,8. |
APA | Turner, Christopher J.,Meichanetzidis, Konstantinos,Papic, latko,&Pachos, Jiannis K..(2019).Optimal free descriptions of many-body theories.NATURE COMMUNICATIONS,8. |
MLA | Turner, Christopher J.,et al."Optimal free descriptions of many-body theories".NATURE COMMUNICATIONS 8(2019). |
条目包含的文件 | 条目无相关文件。 |
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