arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0904.4865gr-qchep-thmath-phmath.MP
收藏

量子引力中的线元:DSR和非对易几何的例子

Line element in quantum gravity: the examples of DSR and noncommutative geometry

Pierre Martinetti

摘要:

我们质疑线元的概念,在某些量子空间,预计将发挥作用,在量子引力,即非交换变形的闵可夫斯基空间。我们还记得如何实施莱布尼茨规则禁止看到一些无穷小变形庞加莱变换作为良好的候选人诺特对称性。然后我们回顾了非对易几何中关于线元的更基本的观点,并在此基础上重新讨论了关于Connes距离公式的一些结果。

英文摘要:

We question the notion of line element in some quantum spaces that are expected to play a role in quantum gravity, namely non-commutative deformations of Minkowski spaces. We recall how the implementation of the Leibniz rule forbids to see some of the infinitesimal deformed Poincare transformations as good candidates for Noether symmetries. Then we recall the more fundamental view on the line element proposed in noncommutative geometry, and re-interprete at this light some previous results on Connes' distance formula.

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。

↑