2PN N体哈密顿量的完全解析表达式
A Fully Analytic Expression for the 2PN N-Body Hamiltonian
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中文总结 AI 辅助
本文解析计算了2PN阶N体哈密顿量中遗留的积分项,首次给出其完全显式闭式表达式,并通过数值比较验证了正确性。
中文摘要 AI 辅助
我们给出了在Arnowitt-Deser-Misner (ADM)规范下,无自旋点粒子在第二后牛顿(2PN)阶的N体哈密顿量的完整解析表达式。近期工作已将一般N体哈密顿量化简为包含单个未解析积分项的形式,这阻碍了完全显式闭式表示的获得。在此,我们解析地计算了这一积分,从而得到了通用2PN N体哈密顿量的完全显式闭式表达式。我们概述了推导的主要步骤,并通过与原始积分表示的直接数值比较验证了该解析表达式。
英文摘要
We present a complete analytic expression for the $N$-body Hamiltonian of nonspinning point particles at second post-Newtonian (2PN) order in the Arnowitt-Deser-Misner (ADM) gauge. Recent work reduced the general $N$-body Hamiltonian to a form containing a single unresolved integral term, which prevented a fully explicit closed-form representation. Here, we evaluate this integral analytically and thereby obtain a fully explicit closed-form expression for the general 2PN $N$-body Hamiltonian. We outline the main steps of the derivation and validate the analytic expression through direct numerical comparisons with the original integral representation.
发表机构
- Friedrich-Schiller-Universität Jena(耶拿弗里德里希·席勒大学)
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