Post-Newtonian Feasibility of the Closed String Massless Sector

被引：5

作者：

Choi, Kang-Sin ^{[1
,2
]}

Park, Jeong-Hyuck ^{[3
]}

机构：

[1] Ewha Womans Univ, Scranton Honors Program, Seoul 03760, South Korea

[2] Ewha Womans Univ, Inst Math Sci, Seoul 03760, South Korea

[3] Sogang Univ, Dept Phys, 35 Baekbeom ro, Seoul 04107, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2022年 / 129卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

RELATIVISTIC GRAVITY; GENERAL-RELATIVITY; DUALITY; DECAYS; FORMULATION; RULE;

D O I：

10.1103/PhysRevLett.129.061603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We perform post-Newtonian analysis of double field theory as a test of string theory in gravitational sector against observations. We identify the Eddington-Robertson-Schiff parameters beta(PPN), gamma(PPN) with the charges of electric H flux and dilaton respectively, and further relate them to stress-energy tensor. We show beta(PPN) = 1 from weak energy condition and argue that the observation of gamma(PPN) similar or equal to 1 signifies the ultrarelativistic equation of state in baryons, or the suppression of gluon condensate.

引用

页数：7

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