Well-posed formulation of Lovelock and Horndeski theories

被引：76

作者：

Kovacs, Aron D. ^{[1
]}

Reall, Harvey S. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Appl Math & Theoret Phys, Wilberforce Rd, Cambridge CB3 0WA, England

来源：

PHYSICAL REVIEW D | 2020年 / 101卷 / 12期

关键词：

TENSOR;

D O I：

10.1103/PhysRevD.101.124003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the initial value problem for Lovelock and Horndeski theories of gravity. We show that the equations of motion of these theories can be written in a form that, at weak coupling, is strongly hyperbolic and therefore admits a well-posed initial value problem. This is achieved by introducing a new class of "modified harmonic" gauges for general relativity.

引用

页数：24

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