论文标题
紧急su（2）$ _ 1 $ spin-1/2 kitaev-gamma链中的共形对称性与dzyaloshinskii-moriya互动
Emergent SU(2)$_1$ conformal symmetry in the spin-1/2 Kitaev-Gamma chain with a Dzyaloshinskii-Moriya interaction
论文作者
论文摘要
我们研究了具有键依赖性的dzyaloshinskii-moriya（DM）相互作用的一维自旋1/2 Kitaev-gamma模型，可以通过在第三方向上施加的电场引起的第一个和第二个方向，其中第一个和第二个方向参考了模型中的两个键方向。通过野外理论和对称分析的结合，在Spin-1/2 Kitaev-Gamma-DM链的相图中找到了具有新兴SU（2）$ _ 1 $共形对称性的扩展无间隙相（2）$ _ 1 $。分析预测与从密度矩阵重新归一化组模拟获得的数值结果达成了良好的协议。
We study the one-dimensional spin-1/2 Kitaev-Gamma model with a bond-dependent Dzyaloshinskii-Moriya (DM) interaction, which can be induced by an electric field applied in the third direction where the first and second directions refer to the two bond directions in the model. By a combination of field theory and symmetry analysis, an extended gapless phase with an emergent SU(2)$_1$ conformal symmetry is found in the phase diagram of the spin-1/2 Kitaev-Gamma-DM chain. The analytic predictions are in good agreements with numerical results obtained from density matrix renormalization group simulations.
