论文标题
几何沮丧的耗散XYZ模型中的非均匀阶段
Nonuniform phases in the geometrically frustrated dissipative XYZ model
论文作者
论文摘要
我们研究了二维三角晶格上耗散性自旋1/2 XYZ模型的稳态相图，其中每个位点耦合到局部环境。通过簇均值场近似，我们发现系统的稳态阶段相当丰富，特别是由于几何挫败感，由于几何挫败感，存在各种类型的非均匀抗铁磁阶段。当分析中包含的短距离相关性时，数值结果表明振荡阶段消失了，而三角磁磁性和巨型铁磁相阶段仍然存在于热力学极限中。此外，旋转结构因子也揭示了旋转密度波相位的旋转密度波相，该相位被单位点平均场分析所遗漏。
We investigate the steady-state phase diagram of the dissipative spin-1/2 XYZ model on a two-dimensional triangular lattice, in which each site is coupled to a local environment. By means of cluster mean-field approximation, we find that the steady-state phases of the system are rather rich, in particular there exist various types of nonuniform antiferromagnetic phases due to the geometrical frustration. As the short-range correlations included in the analysis, the numerical results show that the oscillatory phase disappears while the triantiferromagnetic and biantiferromagnetic phases remain to exist in the thermodynamic limit. Moreover, the existence of the spin-density-wave phase, which is missed by the single-site mean-field analysis, is also revealed by the spin-structure factor.
