A note on causality constraining higher curvature corrections to gravity

被引：32

作者：

Gruzinov, A. ^{[1
]}

Kleban, M. ^{[1
]}

机构：

[1] NYU, Dept Phys, New York, NY 10003 USA

来源：

CLASSICAL AND QUANTUM GRAVITY | 2007年 / 24卷 / 13期

关键词：

D O I：

10.1088/0264-9381/24/13/N02

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We showthat causality constrains the sign of quartic Riemann corrections to the Einstein-Hilbert action. Our constraint constitutes a restriction on candidate theories of quantum gravity.

引用

页码：3521 / 3524

页数：4

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