https://scholars.lib.ntu.edu.tw/handle/123456789/415607
標題: | Crossover of correlation functions near a quantum impurity in a Tomonaga-Luttinger liquid | 作者: | Lo, Chung Yu Fukusumi, Yoshiki Oshikawa, Masaki YING-JER KAO |
關鍵字: | Physics - Strongly Correlated Electrons; Physics - Strongly Correlated Electrons | 公開日期: | 7-三月-2019 | 卷: | 99 | 期: | 12 | 來源出版物: | Physical Review B | 摘要: | © 2019 American Physical Society. An impurity in a Tomonaga-Luttinger liquid leads to a crossover between the short- and long-distance regime which describes many physical phenomena. However, a calculation of the entire crossover of correlation functions over different length scales has been difficult. We develop a powerful numerical method based on the infinite density matrix renormalization group. By utilizing infinite boundary conditions we can obtain correlation functions within a finite-size window that contains the impurity. For the S=1/2 chain, we demonstrate that a full crossover can be precisely obtained, and that their limiting behaviors show a good agreement with field-theory predictions. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/415607 | ISSN: | 24699950 | DOI: | 10.1103/PhysRevB.99.121103 https://api.elsevier.com/content/abstract/scopus_id/85062699972 |
顯示於: | 物理學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。