Nonperturbative de Sitter vacua via α′ corrections
Olaf Hohm, Barton Zwiebach
Abstract
© 2019 World Scientific Publishing Company. The higher-derivative α′ corrections consistent with O(d,d) duality invariance can be completely classified for cosmological, purely time-dependent backgrounds. This result is used to show that there are duality invariant theories featuring string-frame de Sitter vacua as solutions that are nonperturbative in α′, thus suggesting that classical string theory may realize de Sitter solutions in an unexpected fashion.
Topics & Concepts
PhysicsDe Sitter universeMathematical physicsAnti-de Sitter spaceDuality (order theory)String theoryInvariant (physics)De Sitter spaceTheoretical physicsde Sitter invariant special relativityString (physics)Quantum mechanicsUniversePure mathematicsMathematicsBlack Holes and Theoretical PhysicsCosmology and Gravitation TheoriesParticle physics theoretical and experimental studies