书目名称 | Quantum Impurity Problems in the Framework of Natural Orbitals |
副标题 | A Comprehensive Stud |
编辑 | Maxime Debertolis |
视频video | |
概述 | Nominated as an outstanding PhD thesis by the University of Grenoble.Presents an exhaustive study of the correlation entanglement of quantum impurity problems.Exploits the properties of entanglement t |
丛书名称 | Springer Theses |
图书封面 |  |
描述 | .This book presents a complete study of natural orbitals in quantum impurity problems, revealing a certain simplicity in these interacting many-body problems. These systems consist of a few localized degrees of freedom that undergo strong interactions and hybridize with a larger system of free particles; they are central in the study of strongly correlated systems. ..In a first step, the standard non-perturbative numerical renormalization group method is employed to demonstrate the hierarchical structure of correlations unveiled by natural orbitals. This simplification brought new insights for simulating quantum impurity problems, and a new algorithm is developed to generate an optimized subset of natural orbitals independently of existing methods, going beyond their usual limitations. This algorithm is presented in detail in the book, and a careful benchmark on known results is carried out to guarantee the validity of the method. It is then used to study spatial entanglement structures under various conditions that were not accessible with previous methods, such as representing the electron bath by a realistic 2D square lattice or taking account of static disorder in the metallic |
出版日期 | Book 2024 |
关键词 | quantum impurities; natural orbitals; spatial kondo correlations; many particle quantum systems; Random |
版次 | 1 |
doi | https://doi.org/10.1007/978-3-031-47233-6 |
isbn_softcover | 978-3-031-47235-0 |
isbn_ebook | 978-3-031-47233-6Series ISSN 2190-5053 Series E-ISSN 2190-5061 |
issn_series | 2190-5053 |
copyright | The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl |