二维正方格子上经典XY模型的24阶高温展开
High-temperature expansions through order 24 for the two-dimensional classical XY model on the square lattice
摘要：
将二维正方晶格上经典XY（planar rotator）模型的自旋-自旋关联函数的高温展开式从21阶扩展到24阶，并分析了其对临界参数的改进估计.
英文摘要：
The high-temperature expansion of the spin-spin correlation function of the two-dimensional classical XY (planar rotator) model on the square lattice is extended by three terms, from order 21 through order 24, and analyzed to improve the estimates of the critical parameters.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
