STRING THEORY AND GRAVITY

被引：264

作者：

DAMOUR, T ^{[1
]}

POLYAKOV, AM ^{[1
]}

机构：

[1] PRINCETON UNIV,DEPT PHYS,PRINCETON,NJ 08544

来源：

GENERAL RELATIVITY AND GRAVITATION | 1994年 / 26卷 / 12期

关键词：

D O I：

10.1007/BF02106709

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is pointed out that string-loop effects may generate matter couplings for the dilaton allowing this scalar partner of the tensorial graviton to stay massless while contributing to macroscopic gravity in a way naturally compatible with existing experimental data. Under a certain assumption of universality of the dilaton coupling functions, the cosmological evolution drives the dilaton towards values where it decouples from matter. At the present cosmological epoch, the coupling to matter of the dilaton should be very small, but non zero. This provides a new motivation for improving the experimental tests of Einstein's Equivalence Principle.

引用

页码：1171 / 1176

页数：6

共 7 条

[1] STRING THEORY EFFECTIVE ACTIONS [J].