There has been interest in the spin transport properties of the Aubry-André-Harper model at high temperatures under weak integrability breaking, in particular for small interactions or small fields. We present results that show that the model is diffusive, meaning that the claimed superdiffusion is a finite-size effect.

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评论“相互作用的 Aubry-André-Harper 模型的非平衡稳态阶段”

人们对 Aubry-André-Harper 模型在高温下弱可积性破坏的自旋输运特性很感兴趣，特别是对于小相互作用或小场。我们提供的结果表明该模型是扩散的，这意味着所声称的超扩散是一种有限大小的效应。