期刊论文

Wu, Yuanfang

英文

Physical Review E

2470-0045

2019

100

5

052146

10.1103/PhysRevE.100.052146

Major State Basic Research Development Program of ChinaNational Basic Research Program of China [2014CB845402]; Ministry of Science and Technology (MoST)Ministry of Science and Technology, China [2016YFE0104800]

本校为第一且通讯机构

The critical point is a fixed point in finite-size scaling. To quantify the behavior of such a fixed point, we define, at a given temperature and scaling exponent ratio, the width of scaled observables for different sizes. The minimum of the width reveals the position of the fixed point, its corresponding phase transition temperature, and scaling exponent ratio. The value of this ratio tells the nature of the fixed point, which can be a critical point, a point of the first-order phase transition line, or a point of the crossover region. To demonstrate the effectiveness of this method, we apply...