论文标题
通过动力学约束逮捕经典的多体混乱
Arresting classical many-body chaos by kinetic constraints
论文作者
论文摘要
我们使用超时订购的相关器（OTOC）的经典对应物（OTOC）研究了动力学约束对经典多体混乱的影响。约束的强度驱动了分离到分离阶段的“动力学相变”，在该阶段中，经典的OTOC从局部阶段传播了弹道，在该阶段，OTOC根本没有传播，整个系统都不会传播。这是出乎意料的，因为所有自旋构型彼此均可动态连接。我们表明，由于冻结岛的动态形成，由于限制的限制而导致旋转不动的连续段，因此出现了定位。
We investigate the effect of kinetic constraints on classical many-body chaos in a translationally-invariant Heisenberg spin chain using a classical counterpart of the out-of-time-ordered correlator (OTOC). The strength of the constraint drives a 'dynamical phase transition' separating a delocalised phase, where the classical OTOC propagates ballistically, from a localised phase, where the OTOC does not propagate at all and the entire system freezes. This is unexpected given that all spins configurations are dynamically connected to each other. We show that localisation arises due to the dynamical formation of frozen islands, contiguous segments of spins immobile due to the constraints, dominating over the melting of such islands.
