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Equivalence between the ADM-Hamiltonian and the harmonic-coordinates approaches to the third post-Newtonian dynamics of compact binaries

机译:ADM-Hamiltonian方法与三次坐标的三次元牛顿动力学三次谐波坐标方法的等价关系

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摘要

The third post-Newtonian approximation to the general relativistic dynamics of two point-mass systems has been recently derived by two independent groups, using different approaches, and different coordinate systems. By explicitly exhibiting the map between the variables used in the two approaches we prove their physical equivalence. Our map allows one to transfer all the known results of the Arnowitt-Deser-Misner (ADM) approach to the harmonic-coordinates one: in particular, it gives the value of the harmonic-coordinates Lagrangian, and the expression of the ten conserved quantities associated to global Poincar\'e invariance.
机译:最近,由两个独立的小组使用不同的方法和不同的坐标系,得出了两个点质量系统的广义相对论动力学的第三次牛顿后近似。通过明确展示两种方法中使用的变量之间的映射,我们证明了它们的物理等效性。我们的地图允许将Arnowitt-Deser-Misner(ADM)方法的所有已知结果转换为一个谐波坐标:特别是,它给出了谐波坐标拉格朗日的值以及十个守恒量的表达式与全局庞加莱不变性相关。

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