Space-time structures from IIB matrix model

被引:192
作者
Aoki, H [1 ]
Iso, S
Kawai, H
Kitazawa, Y
Tada, T
机构
[1] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki 305, Japan
[2] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan
来源
PROGRESS OF THEORETICAL PHYSICS | 1998年 / 99卷 / 05期
关键词
D O I
10.1143/PTP.99.713
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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 a 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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页码:713 / 745
页数:33
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