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String Theory, Space-Time Non-Commutativity and Structure Formation

Robert Brandenberger
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Abstract

A natural consequence of string theory is a non-commutative structure of space-time on microscopic scales. The existence of a minimal length, and a modification of the effective field theory are two consequences of this space-time non-commutativity. I will first explore some consequences of the modifications of the effective field theory for structure formation in the context of an inflationary cosmology. Then, I will explore the possibility that the existence of a minimal length will lead to a structure formation scenario different from inflation. Specifically, I will discuss recent work on string gas cosmology.

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Robert Brandenberger. 2007-03-19. String Theory, Space-Time Non-Commutativity and Structure Formation. https://doi.org/10.1143/ptps.171.121

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