论文标题
磁性单孔的彩色噪声:在坐着的真空和旋转冰指数中的细节扩散
The Colored Noise of Magnetic Monopoles: Subdiffusion in a Coevolving Vacuum and Spin Ice Exponents
论文作者
论文摘要
我们将在自旋冰中实验发现的异常噪声与磁性单孔的细胞扩散有关。由于单孔是新兴的颗粒,因此它们不会在无结构的真空中移动。相反,基础自旋整体过滤了热白噪声,导致非平凡的进化。因此,只有在随机力的效果下,只要它们不是琐碎的白色,而是将旋转真空的演化归为随机力的作用,可以将单孔视为随机力的随机步行者。通过这种概念化,我们猜想了噪声的颜色与其他可观察物的颜色之间的关系,例如松弛时间,单极密度,动态指数和an灭反应的顺序,这使我们在冰歧管附近引入了旋转冰冰的特定临界指数。
We relate the anomalous noise found experimentally in spin ice to the subdiffusion of magnetic monopoles. Because monopoles are emergent particles, they do not move in a structureless vacuum. Rather, the underlying spin ensemble filters the thermal white noise, leading to non-trivial coevolution. Thus, monopoles can be considered as random walkers under the effect of stochastic forces only as long as those are not trivially white, but instead subsume the evolution of the spin vacuum. Via this conceptualization, we conjecture relations between the color of the noise and other observables, such as relaxation time, monopole density, the dynamic exponent, and the order of the annihilation reaction, which lead us to introduce spin ice specific critical exponents in a neighborhood of the ice manifold.