Inhomogeneous pre-Big Bang string cosmology |
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| Affiliation: | 1. Department of Physics and Electronic, College of Mathematics and Physics, Beijing University of Chemical Technology, Beijing 100029, PR China;2. Department of Physics, Beijing Technology and Business University, Beijing, 100048, PR China;3. College of Physics and Technology, Xinjiang University, Urumqi 830046, PR China;4. Laboratorio de Información Cuántica, CIDETEC, Instituto Politécnico Nacional, UPALM, CDMX 07700, Mexico;1. Enrico Fermi Institute and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, United States;2. Center for Particle Cosmology, Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, United States;1. DFG Research Unit “The Epistemology of the Large Hadron Collider” (grant FOR 2063), Germany;2. Lichtenberg Group for History and Philosophy of Physics, University of Bonn, Germany;3. Institute for Theoretical Particle Physics and Cosmology, RWTH Aachen University, Germany |
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| Abstract: | An inhomogeneous version of pre-Big Bang cosmology emerges, within string theory, from quite generic initial conditions, provided they lie deeply inside the weak-coupling, low-curvature regime. Large-scale homogeneity, flatness, and isotropy appear naturally as late-time outcomes of such an evolution. |
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