Many-body anticommutator and its applications in the normalization of completely symmetric states with Majorana's stellar representations

Autor: Li-Bin Fu, Xi Lu, Xiaoguang Wang, H. D. Liu, Jie Chen, Liyao Zhan
Rok vydání: 2021
Předmět:
Zdroj: Physical Review A. 104
ISSN: 2469-9934
2469-9926
DOI: 10.1103/physreva.104.012203
Popis: Understanding the quantum properties of many-body states is important in the fields of both quantum information and condensed-matter physics. For this purpose, we generalize the basic concept of the anticommutator from two operators to the many-body case. Some key properties are given for the many-body anticommutators, and examples are provided for Pauli operators and density matrices. Using these results and techniques from the symmetry group, in a straightforward way, we give the normalization of the completely symmetric states with Majorana's stellar representations. Our developed method will help to pave the way in the study of many-body symmetric systems.
Databáze: OpenAIRE