.png){kind=icon}
返回
Density functional formulations for quantum chains
.png){kind=icon}
OA
AI
DOI：10.1103/PhysRevB.76.035109.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
We show that a lattice formulation of density functional theory (DFT), guided by renormalization-group concepts, can be used to obtain numerical predictions of energy gaps, spin-density profiles, critical exponents, sound velocities, surface energies, and conformal anomalies of spatially inhomogeneous quantum-spin chains. To this end, we (i) cast the formalism of DFT in the notation of quantum-spin chains to make the powerful methods and concepts developed in ab initio DFT available to workers in this field, (ii) explore to what extent simple local approximations in the spirit of the local-density approximation (LDA) can be used to predict critical exponents and conformal anomalies of quantum-spin models, and (iii) propose and explore various nonlocal approximations depending on the size of the system or on its average density in addition to the local density. These nonlocal functionals turn out to be superior to LDA functionals.
Keyword:
CONFORMAL-INVARIANCE
CRITICAL-BEHAVIOR
HEISENBERG-MODEL
OPERATOR CONTENT
SPIN MODELS
XXZ CHAIN
SIZE
EXPONENTS
SYSTEM
ENERGY
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.7
论文数:
15.4W
被引数:
41.0W
机构
暂无机构信息
引用论文
Snap deconvolution: An informatics approach to high-throughput discovery of catalytic reactions.png)
Science
OAAI
ScienceIF0
OAAI分享收藏A Person Re-Identification System for Mobile Devices移动设备的人重识别系统2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS)OAAI
2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS)IF0
OAAI分享收藏Phase coherence in a random one-dimensional system of interacting fermions: A density-matrix renormalization-group studyPHYSICAL REVIEW BOAAI
PHYSICAL REVIEW BIF3.7
OAAI分享收藏
查看更多内容