论文标题
相互作用的旋转液体的特殊动力学
Exceptional dynamics of interacting spin liquids
论文作者
论文摘要
我们表明，量子自旋液体中的相互作用可能导致非甲虫现象学，这与平均场期望差异不同。我们通过声子和障碍对Kitaev Honeycomb模型的影响进行了两种突出的情况。使用分析和数值计算，我们根据系统的对称性显示了特殊点和环的通用外观。它们的存在反映在动态可观察物中，包括在中子散射中测得的动态结构函数。结果表明，必须将可实现的自旋液体中的新现象学特征纳入实验数据的分析中，并表明旋转液体通常在更广泛的扰动中稳定。
We show that interactions in quantum spin liquids can result in non-Hermitian phenomenology that differs qualitatively from mean-field expectations. We demonstrate this in two prominent cases through the effects of phonons and disorder on a Kitaev honeycomb model. Using analytic and numerical calculations, we show the generic appearance of exceptional points and rings depending on the symmetry of the system. Their existence is reflected in dynamical observables including the dynamic structure function measured in neutron scattering. The results point to new phenomenological features in realizable spin liquids that must be incorporated into the analysis of experimental data and also indicate that spin liquids could be generically stable to wider classes of perturbations.
