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Updated: Aug 30, 2025

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Post-Newtonian Feasibility of the Closed String Massless Sector
Kang-Sin Choi1, Jeong-Hyuck Park2
1Scranton Honors Program, Ewha Womans University, Seodaemun-gu, Seoul 03760, Korea and Institute of Mathematical Sciences, Ewha Womans University, Seodaemun-gu, Seoul 03760, Korea.
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 β_{PPN}, γ_{PPN} with the charges of electric H flux and dilaton respectively, and further relate them to stress-energy tensor. We show β_{PPN}=1 from weak energy condition and argue that the observation of γ_{PPN}≃1 signifies the ultrarelativistic equation of state in baryons, or the suppression of gluon condensate.
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