Post-Newtonian Feasibility of the Closed String Massless Sector
- 주제(기타) Physics, Multidisciplinary
- 설명문(일반) [Choi, Kang-Sin] Ewha Womans Univ, Scranton Honors Program, Seoul 03760, South Korea; [Choi, Kang-Sin] Ewha Womans Univ, Inst Math Sci, Seoul 03760, South Korea; [Park, Jeong-Hyuck] Sogang Univ, Dept Phys, 35 Baekbeom ro, Seoul 04107, South Korea
- 등재 SCIE, SCOPUS
- OA유형 Green Submitted, hybrid
- 발행기관 AMER PHYSICAL SOC
- 발행년도 2022
- URI http://www.dcollection.net/handler/ewha/000000203106
- 본문언어 영어
- Published As https://doi.org/10.1103/PhysRevLett.129.061603
- PubMed https://pubmed.ncbi.nlm.nih.gov/36018649
초록/요약
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.
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