Anisotropic homogeneous string cosmology with two-loop corrections

The two-loop (order α′) β-function equations, which are equivalent to the equations of motion of α′-corrected string effective action, are considered for anisotropic homogeneous space–times. These equations are solved for all Bianchi-type models in two schemes of effective action, namely R2 and Gaus...

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Bibliographic Details
Main Authors: F. Naderi, A. Rezaei-Aghdam
Format: Article
Language:English
Published: Elsevier 2017-10-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321317302584