arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1301.6950hep-thgr-qc
收藏

Horava-Lifshitz引力中的物质

Matter in Horava-Lifshitz gravity

Ian Kimpton, Antonio Padilla

摘要:

我们考虑的Horava-Liftshitz引力在经典和量子水平的非投影版本的物质的作用。在经典的水平上,我们构造了一般形式的物质拉格朗日一致的约化对称群,并证明,他们必须减少到相对论的形式,如果他们要避免采购的引力Stuckelberg场。在量子水平上,我们考虑树水平上最小耦合引力的相对论标量传播子的单圈修正。我们发现,在低能量的标量引力子耦合到物质的强度所产生的光锥大的修正。我们还发现,高阶时间导数可能会产生的证据,这是令人担忧的,如果这是要认真对待作为一个UV完整的理论。

英文摘要:

We consider the role of matter in the non-projectable version of Horava-Liftshitz gravity at both a classical and a quantum level. At the classical level, we construct general forms of matter Lagrangians consistent with the reduced symmetry group and demonstrate that they must be reduced to their relativistic form if they are to avoid sourcing the gravitational Stuckelberg field. At the quantum level we consider one loop corrections to the propagator for a relativistic scalar minimally coupled to gravity at tree level. We find large corrections to the light cone at low energies arising from the strength of the coupling of the scalar graviton to matter. We also find evidence that higher order time derivatives may be generated, which is worrying if this is to be taken seriously as a UV complete theory.

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。

↑