论文标题
量子时空的基本破坏
Fundamental decoherence from quantum spacetime
论文作者
论文摘要
我们表明，时空的量子特性，在普朗克量表上通过非交通性编码，导致量子系统的普遍演变，其中纯状态可以演变为混合状态。具体而言，当时间翻译生成器的作用因时空非交通性的效果而变形时，以lindblad的时间演化的形式获得了分解机制。自由粒子演变的变质时间用于表明普朗克质量是基本量子系统的最大质量。
We show that quantum properties of spacetime, encoded by noncommutativity at the Planck scale, lead to a generalized time evolution of quantum systems in which pure states can evolve into mixed states. Specifically, a decoherence mechanism is obtained in the form of a Lindblad-like time evolution for the density operator when the action of time translations generator is deformed by the effects of spacetime noncommutativity. The decoherence time for the evolution of a free particle is used to show that the Planck mass is the maximum allowed mass for elementary quantum systems.
