期刊
PHYSICAL REVIEW A
卷 98, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.98.023607
关键词
-
资金
- NSFC [11704186, 11474211, 61674110]
- startup Fund of Nanjing University of Aeronautics and Astronautics [YAH17053]
We study the criticality of a long-range quantum ferromagnetic Ising chain with algebraically decaying interactions 1/r(alpha) via the fidelity susceptibility based on the exact diagonalization and the density-matrix renormalization-group techniques. We find that critical exponents change monotonically from the mean-field universality class to the short-range Ising universality class for intermediate alpha, which are consistent with recent results obtained from renormalization-group techniques. In addition, we determine the critical values for 1.8 <= a <= 3 from the finite-size scaling of the fidelity susceptibility. Our work provides very nice numerical data from the fidelity susceptibility for the quantum long-range ferromagnetic Ising chain.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据