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arXiv 0902.3903gr-qchep-th
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群场论与单纯量子引力

Group field theory and simplicial quantum gravity

Daniele Oriti

摘要:

提出了一种新的四维量子引力的群场论。它包含了从BF理论给出引力的约束条件,并且具有量子振幅,具有一阶引力的单纯路径积分的显式形式。变量的几何解释和对量子振幅的贡献是显而易见的。这允许与其他单纯重力方法,如量子Regge演算,以模型的振幅和动力学三角形的形式直接联系,我们表明这对应于一个简单的限制。

英文摘要:

We present a new Group Field Theory for 4d quantum gravity. It incorporates the constraints that give gravity from BF theory, and has quantum amplitudes with the explicit form of simplicial path integrals for 1st order gravity. The geometric interpretation of the variables and of the contributions to the quantum amplitudes is manifest. This allows a direct link with other simplicial gravity approaches, like quantum Regge calculus, in the form of the amplitudes of the model, and dynamical triangulations, which we show to correspond to a simple restriction of the same.

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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