A One Loop Problem of the Matrix Big Bang Model

Abstract

We compute the one-loop effective action of two D0-branes in the matrix model for a cosmological background, and find vanishing static potential. However, there is a non-vanishing $v^2$ term not predicted in a supergravity calculation. This term is complex and signals an instability of the two D0-brane system, it may also indicate that the matrix model is incorrect.

21 pages, harvmac, v4: version to appear in JHEP

References in corpus (1)

• Winding String Condensation and Noncommutative Deformation of Spacelike Singularity

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