论文标题
部分可观测时空混沌系统的无模型预测
Phase diagram of a bilinear-biquadratic spin-1 model on the triangular lattice from density matrix renormalization group simulations
论文作者
论文摘要
我们在三角形晶格上研究了一个高度沮丧的自旋1模型，该模型最接近和下一期的邻居抗铁磁$ s \ cdot s $互动和最近的neighbor $（s \ cdot s）^2 $互动。使用密度矩阵重新归一化组（DMRG）技术，我们发现了三个磁有序的相，即120 $^\ circ $螺旋顺序，条纹顺序和四面体顺序，以及两个旋转的列相：铁甲状腺平极和抗肌素quarupolar。尽管我们的数据可能与120 $^\ circ $螺旋和抗纤维核酸的订单之间的旋转液相一致，但更有可能的情况是这两个顺序之间的直接连续过渡。
We investigate a highly frustrated spin-1 model on the triangular lattice, with nearest- and next-nearest-neighbor antiferromagnetic $S\cdot S$ interactions and nearest-neighbor $(S\cdot S)^2$ interactions. Using the density matrix renormalization group (DMRG) technique, we find three magnetically ordered phases, namely 120$^\circ$ spiral order, stripe order, and tetrahedral order, as well as two spin nematic phases: ferroquadrupolar and antiferroquadrupolar. While our data could be consistent with a spin liquid phase between the 120$^\circ$ spiral and antiferroquadrupolar orders, the more likely scenario is a direct continuous transition between these two orders.
