Post-Newtonian Feasibility of the Closed String Massless Sector

Kang Sin Choi, Jeong Hyuck Park

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

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 βPPN, γPPN with the charges of electric H flux and dilaton respectively, and further relate them to stress-energy tensor. We show βPPN=1 from weak energy condition and argue that the observation of γPPN≃1 signifies the ultrarelativistic equation of state in baryons, or the suppression of gluon condensate.

Original languageEnglish
Article number061603
JournalPhysical Review Letters
Volume129
Issue number6
DOIs
StatePublished - 5 Aug 2022

Fingerprint

Dive into the research topics of 'Post-Newtonian Feasibility of the Closed String Massless Sector'. Together they form a unique fingerprint.

Cite this