Exact Real-Time Longitudinal Correlation Functions of the Massive XXZ Chain
Exact Real-Time Longitudinal Correlation Functions of the Massive XXZ Chain
复制标题
大规模 XXZ 链的精确实时纵向相关函数
DOI：
10.1103/physrevlett.126.210602
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发表时间：
2021
影响因子：
8.6
通讯作者：
J. Suzuki
中科院分区：
文献类型：
--
作者：
C. Babenko;F. Gohmann;K. Kozlowski;J. SIrker;J. Suzuki
We apply a recently developed thermal form factor expansion method to evaluate the real-time longitudinal spin-spin correlation functions of the spin-chain in the antiferromagnetically ordered regime at zero temperature. An analytical result incorporating all types of excitations in the model is obtained, without any approximations. This allows for the accurate calculation of the real-time correlations in this strongly interacting quantum system for arbitrary distances and times.
