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arXiv 2101.04705hep-th
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线性化共形引力中的明显电磁对偶性

Manifest electric-magnetic duality in linearized conformal gravity

Hapé Fuhri Snethlage, Sergio Hörtner

摘要:

我们推导出一个明显的对偶对称的共形引力的作用量原理的线性闵可夫斯基时空。分析中进行的哈密顿公式,四阶字符的运动方程需要正式治疗的三维度量扰动和外在的曲率作为独立的动力学变量。的约束解决的两个对称的潜力,被解释为一个双重的三维度量和一个双重的外在曲率。作用量原理可以用这四个动力学变量来表示,对偶性在三维度规和外曲率所跨越的各自空间中充当同时旋转。还提供了一个扭曲的自对偶制定的运动方程。

英文摘要:

We derive a manifestly duality-symmetric formulation of the action principle for conformal gravity linearized around Minkowski space-time. The analysis is performed in the Hamiltonian formulation, the fourth-order character of the equations of motion requiring the formal treatment of the three-dimensional metric perturbation and the extrinsic curvature as independent dynamical variables. The constraints are solved in terms of two symmetric potentials that are interpreted as a dual three-dimensional metric and a dual extrinsic curvature. The action principle can be written in terms of these four dynamical variables, duality acting as simultaneous rotations in the respective spaces spanned by the three-dimensional metrics and the extrinsic curvatures. A twisted self-duality formulation of the equations of motion is also provided.

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