论文标题
将可调位置障碍的偶极系统中的定位配对
Pair localization in dipolar systems with tunable positional disorder
论文作者
论文摘要
受淬火障碍的强烈相互作用的量子系统表现出有趣的现象，例如玻璃度和多体定位。理论研究主要集中在随机电位的形式上，而许多实验实现自然在颗粒间相互作用中具有障碍。受冷rydberg气体的启发，可以使用偶极子阻断效应来设计这种疾病，我们研究了一个海森堡XXZ旋转模型，该模型仅是由于随机定位的旋转之间的幂律相互作用而引起的，该模型仅是由于随机的自旋旋转耦合而造成的。使用已建立的光谱和本征态性质和纠缠熵，我们表明该系统表现出定位的交叉，并将强烈相互作用对确定为系统中新兴的局部保守量，从而导致与我们的数值结果一致的直观物理形象。
Strongly interacting quantum systems subject to quenched disorder exhibit intriguing phenomena such as glassiness and many-body localization. Theoretical studies have mainly focused on disorder in the form of random potentials, while many experimental realizations naturally feature disorder in the interparticle interactions. Inspired by cold Rydberg gases, where such disorder can be engineered using the dipole blockade effect,we study a Heisenberg XXZ spin model where the disorder is exclusively due to random spin-spin couplings, arising from power-law interactions between randomly positioned spins. Using established spectral and eigenstate properties and entanglement entropy, we show that this system exhibits a localization crossover and identify strongly interacting pairs as emergent local conserved quantities in the system, leading to an intuitive physical picture consistent with our numerical results.
