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arXiv 1606.01490hep-th
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基于$Spin(3,1)$对称性的量子化时空

A Quantized Spacetime Based on $Spin(3,1)$ Symmetry

Pisin Chen, Hsu-Wen Chiang, Yao-Chieh Hu

摘要:

基于圈量子引力提出的旋量描述,我们引入了一种新的时空量子化。具体来说,我们建立我们的理论上的弦论启发$Spin(3,1)$世界表行动。由于它与量子引力理论的联系,我们的建议原则上可以联系到弦论,联系到环量子引力,其中$SU(2)$被认为是基本对称,或者作为洛伦兹自旋网络。我们导出了广义不确定原理,并证明了我们的理论的全息性质。由于时空的量子化,测地线在我们的理论是模糊的,但模糊度被证明是远远低于可以想象的天体物理界。

英文摘要:

We introduce a new type of the spacetime quantization based on the spinorial description suggested by loop quantum gravity. Specifically, we build our theory on a string theory inspired $Spin(3,1)$ worldsheet action. Because of its connection with quantum gravity theories, our proposal may in principle link back to string theory, connect to loop quantum gravity where $SU(2)$ is suggested as the fundamental symmetry, or serve as a Lorentzian spin network. We derive the generalized uncertainty principle and demonstrate the holographic nature of our theory. Due to the quantization of spacetime, geodesics in our theory are fuzzy, but the fuzziness is shown to be much below conceivable astrophysical bounds.

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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