arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1302.2336gr-qcastro-ph.COhep-th
收藏

重力探测器B和扭秤实验对NonCommutative谱Action的约束

Constraints on NonCommutative Spectral Action from Gravity Probe B and Torsion Balance Experiments

Gaetano Lambiase, Mairi Sakellariadou, Antonio Stabile

摘要:

非对易谱几何为强相互作用和电弱相互作用的标准模型提供了一个纯粹的几何解释,包括对希格斯场起源的几何解释。在这个框架内,引力、电弱力和强力都被描述为统一的非对易时空上的纯引力。在这项研究中,我们推断出一个约束的三个自由参数的模型,即在统一的耦合常数的特征,通过线性化的场方程的限制,由旋转引力源产生的弱引力场,并利用最近的实验数据。特别是,使用重力探测器B获得的数据,我们设置了一个下限的外尔项出现在非交换的光谱行动,即$β \gtrsim 10^{-6}$ m $^{-1}$。一旦我们使用来自扭秤实验的结果,该约束变得更强,导致$β \gtrsim 10^{4}$ m $^{-1}$。后者比迄今为止对曲率平方项施加的任何约束都强得多。

英文摘要:

Noncommutative spectral geometry offers a purely geometric explanation for the standard model of strong and electroweak interactions, including a geometric explanation for the origin of the Higgs field. Within this framework, the gravitational, the electroweak and the strong forces are all described as purely gravitational forces on a unified noncommutative space-time. In this study, we infer a constraint on one of the three free parameters of the model, namely the one characterising the coupling constants at unification, by linearising the field equations in the limit of weak gravitational fields generated by a rotating gravitational source, and by making use of recent experimental data. In particular, using data obtained by Gravity Probe B, we set a lower bound on the Weyl term appearing in the noncommutative spectral action, namely $β \gtrsim 10^{-6}$m$^{-1}$. This constraint becomes stronger once we use results from torsion balance experiments, leading to $β \gtrsim 10^{4}$m$^{-1}$. The latter is much stronger than any constraint imposed so far to curvature squared terms.

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。

↑