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arXiv · 0704.1727

Stringy corrections to a time-dependent background solution of string and M-Theory

Gustavo Niz·Neil Turok
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Abstract

We consider one of the simplest time-dependent backgrounds in M-theory, describing the shrinking away of the M-theory dimension with the other spatial dimensions static. As the M-theory dimension becomes small, the situation becomes well-described by string theory in a singular cosmological background where the string coupling tends to zero but the $α'$-corrections become large, near the cosmic singularity. We compute these $α'$-corrections, both for the background and for linearized perturbations, in heterotic string theory, and show they may be reproduced by a map from eleven-dimensional M-theory.

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Gustavo Niz, Neil Turok. 2007-04-13. Stringy corrections to a time-dependent background solution of string and M-Theory. https://doi.org/10.1103/physrevd.75.126004

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