Duality invariant cosmology to all orders in α ′
Name
PhysRevD.100.126011.pdf
Description
Published version
Size
329.49 KB
Format
Adobe PDF
Checksum (MD5)
33d1e07a001ebe8560afd71d83166552
Author(s)
Hohm, Olaf
Zwiebach, Barton
Date Issued
2019
Journal
Physical Review D
Publisher
American Physical Society (APS)
Version
Final published version
Abstract
© 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP 3 . While the classification of α′ corrections of string inspired effective theories remains an unsolved problem, we show how to classify duality invariant α′ corrections for purely time-dependent (cosmological) backgrounds. We determine the most general duality invariant theory to all orders in α′ for the metric, b-field, and dilaton. The resulting Friedmann equations are studied when the spatial metric is a time-dependent scale factor times the Euclidean metric and the b-field vanishes. These equations can be integrated perturbatively to any order in α′. We construct nonperturbative solutions and display duality invariant theories featuring string-frame de Sitter vacua.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PHYSREVD.100.126011
