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arXiv 1101.0931hep-thgr-qc
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相对局部性原则

The principle of relative locality

Giovanni Amelino-Camelia, Laurent Freidel, Jerzy Kowalski-Glikman, Lee Smolin

摘要:

我们提出了一个深化的相对性原理,根据该原理,非量子物理学的不变舞台是相空间,而不是时空。粒子在时空中传播和相互作用的描述是由观察者构建的,但是不同的观察者,通过平移彼此分离,从不变的相空间构建不同的时空投影。尽管如此,所有的观察者都同意相互作用在他们本地的观察者所构造的时空坐标中是局部的。这种绝对定域性被相对定域性取代的框架,是动量空间变形的结果,正如从绝对定域性到相对定域性的转变是速度线性相加变形的结果一样。动量空间几何的不同方面,如曲率、挠率和非度规性,反映在能量动量守恒定律的不同变形中。这些原则上都可以通过适当的实验来测量。我们还讨论了一组自然的物理假设,挑选出的情况下,动量空间的度量兼容的连接和常曲率。

英文摘要:

We propose a deepening of the relativity principle according to which the invariant arena for non-quantum physics is a phase space rather than spacetime. Descriptions of particles propagating and interacting in spacetimes are constructed by observers, but different observers, separated from each other by translations, construct different spacetime projections from the invariant phase space. Nonetheless, all observers agree that interactions are local in the spacetime coordinates constructed by observers local to them. This framework, in which absolute locality is replaced by relative locality, results from deforming momentum space, just as the passage from absolute to relative simultaneity results from deforming the linear addition of velocities. Different aspects of momentum space geometry, such as its curvature, torsion and non-metricity, are reflected in different kinds of deformations of the energy-momentum conservation laws. These are in principle all measurable by appropriate experiments. We also discuss a natural set of physical hypotheses which singles out the cases of momentum space with a metric compatible connection and constant curvature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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