O(d, d) covariant string cosmology to all orders in α′
Heliudson Bernardo, Robert Brandenberger, Guilherme Franzmann
Abstract
A bstract Recently, all duality invariant α ′-corrections to the massless NS-NS sector of string theory on time-dependent backgrounds were classified and the form of their contribution to the action were calculated. In this paper we introduce matter sources in the resulting equations of motion in an O( d, d ) covariant way. We show that either starting with the corrected equations and sourcing them with matter or considering corrections to the matter sourced lowest order equations give the same set of equations that defines string cosmology to all orders in α ′. We also discuss perturbative and non-perturbative de Sitter solutions including matter.
Topics & Concepts
Covariant transformationCosmologyPhysicsString cosmologyString (physics)Mathematical physicsTheoretical physicsQuantum mechanicsRelationship between string theory and quantum field theoryQuantum gravityQuantumBlack Holes and Theoretical PhysicsCosmology and Gravitation TheoriesParticle physics theoretical and experimental studies