论文标题
与视觉锥相互作用的非reciprocal XY模型中的远程顺序和定向缺陷传播
Long-range Order and Directional Defect Propagation in the Nonreciprocal XY Model with Vision Cone Interactions
论文作者
论文摘要
我们研究了二维非reciprocal XY模型，其中每种自旋仅与其最近的邻居相互作用，其当前方向（即其“视觉锥”）的一定角度。使用能量参数和蒙特卡洛模拟，我们表明出现了真正的远程阶段。必要的成分是依赖于构型的键稀释的视觉锥。令人惊讶的是，缺陷以定向方式传播，从而破坏了自旋动力学的平等和时间反转对称性。这是通过非零熵生产率可检测的。
We study a two-dimensional, nonreciprocal XY model, where each spin interacts only with its nearest neighbours in a certain angle around its current orientation, i.e., its `vision cone'. Using energetic arguments and Monte-Carlo simulations we show that a true long-range ordered phase emerges. A necessary ingredient is a configuration-dependent bond dilution entailed by the vision cones. Strikingly, defects propagate in a directional manner, thereby breaking the parity and time-reversal symmetry of the spin dynamics. This is detectable by a non-zero entropy production rate.
