# Stringy corrections to Friedmann equation

Does anyone know a reference or a paper which discusses string theory correction to Friedmann equations?

• Maybe this paper might interest you (see for instance Chapter $5$ page $25$ and formulae $158$-$164$ page $29$) – Trimok Jan 8 '14 at 11:04
• As it currently is, the question is too broad, there are many 'corrections' that could be thought as 'stringy'. For an introduction look at the lectures: Cline, J.M. String cosmology. arXiv:hep-th/0612129 (2006). – user23660 Jan 8 '14 at 12:49