标题： 关于量子力学中信息传播和最大速度限制 显示英文标题

标题： On Propagation of Information in Quantum Mechanics and Maximal Velocity Bounds

摘要： 我们重新审视与少体量子力学（fbQM）中量子信息演化的相关关键概念，并针对一大类色散关系，证明了具有指数误差界的状态和可观测量的量子信息传播最大速度的统一界限。 我们的结果特别表明了fbQM中的Lieb-Robinson界限，该界限在量子信息科学中已知有广泛的应用。 我们提出了一种新的证明最大速度界限的方法。 显示英文摘要

摘要： We revisit key notions related to the evolution of quantum information in few-body quantum mechanics (fbQM) and, for a wide class of dispersion relations, prove uniform bounds on the maximal speed of propagation of quantum information for states and observables with exponential error bounds. Our results imply, in particular, a fbQM version of the Lieb-Robinson bound, which is known to have wide applications in quantum information sciences. We propose a novel approach to proving maximal speed bounds.