论文标题
评论“扩散系统中的纠缠增长”
Comment on "Entanglement growth in diffusive systems"
论文作者
论文摘要
在最近的一篇论文（Commun。3，100）中，Znidaric研究了扩散系统中较高的Renyi熵的增长，并声称它们通常会及时地弹性生长，除了D = 1维度的Spin-1/2模型。在这里，我们指出，Renyi熵的亚挑战生长的必要条件实际上更为笼统，并且适用于大型系统，包括在任意维度和较大的本地希尔伯特空间中的实验相关系统。
In a recent paper (Commun. Phys. 3, 100) Znidaric studies the growth of higher Renyi entropies in diffusive systems and claims that they generically grow ballistically in time, except for spin-1/2 models in d=1 dimension. Here, we point out that the necessary conditions for sub-ballistic growth of Renyi entropies are in fact much more general, and apply to a large class of systems, including experimentally relevant ones in arbitrary dimension and with larger local Hilbert spaces.
