Space-Time Structures from IIB Matrix Model

Details Space-Time Structures from IIB Matrix Model Space-Time Structures from IIB Matrix Model

1998-02-12

arxiv.org/abs/hep-th/9802085v1

Prog.Theor.Phys. 99 (1998) 713-746

Physics

High Energy Physics

High Energy Physics - Theory

39 pages, Latex, uses epsf and axodraw

Scientific paper

10.1143/PTP.99.713

We derive a long distance effective action for space-time coordinates from a IIB matrix model. It provides us an effective tool to study the structures of space-time. We prove the finiteness of the theory for finite $N$ to all orders of the perturbation theory. Space-time is shown to be inseparable and its dimensionality is dynamically determined. The IIB matrix model contains a mechanism to ensure the vanishing cosmological constant which does not rely on the manifest supersymmetry. We discuss possible mechanisms to obtain realistic dimensionality and gauge groups from the IIB matrix model.

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