标题： 量子时空：一个澄清 显示英文标题

标题： Quantum Spacetime: a Disambiguation

摘要： 我们回顾了一种非交换几何的方法，其中模型通过坐标量子化来构建。特别地，我们关注完整的DFR模型及其不可约分量；将模型限制到某个特定的不可约分量通常被称为“规范量子时空”。目标是从各种观点区分和比较这些方法，包括动机、量子化的处方、数学对象和概念的选择、动力学的方法以及协变性处理方式。 显示英文摘要

摘要： We review an approach to non-commutative geometry, where models are constructed by quantisation of the coordinates. In particular we focus on the full DFR model and its irreducible components; the (arbitrary) restriction to a particular irreducible component is often referred to as the "canonical quantum spacetime". The aim is to distinguish and compare the approaches under various points of view, including motivations, prescriptions for quantisation, the choice of mathematical objects and concepts, approaches to dynamics and to covariance.