论文标题
无序量子磁铁中的磁性膜极相互作用和准粒子)
Magnetodipolar interaction and quasiparticles delocalization in disordered quantum magnets
论文作者
论文摘要
众所周知,无序量子磁铁通常在间隙阶段中构成局部基本激发。在这里,我们表明,在三维情况下,远距离磁性相互作用可以导致准粒子离域化,类似于先前针对无序固体中局部振动模式所描述的现象。采用重新归一化的群体式思想,发现平均本本特征职业编号随系统大小而扩展,这也导致系统的近外动力学特性。
It is well-known that disordered quantum magnets usually host localized elementary excitations in gapped phases. Here we show that long-range magnetodipolar interaction can lead to quasiparticles delocalization in the three-dimensional case, similarly to the phenomenon previously described for localized vibrational modes in disordered solids. Employing renormalization group-like ideas, the average eigenmode occupation number is found to scale with the system size, which also leads to sub-diffusive dynamical properties of the system.