Journal of Anhui University
Quantum phase transitions of the spin-1/2 XXZ double chain with long-range interactions in the external magnetic field
Shuguo Lei
Abstract
Using the mean-field Jordan-Wigner transformation analysis,the authors studied the quantum phase transitions of the one-dimensional spin-1/2 XXZ double chain with Z-directional uniform long-range interactions in the external magnetic field.Analytical formulas and numerical solutions of the Helmholtz free energy and magnetization were obtained.The results agreed with that of other literatures.