A non-singular infra-red flow from D=5 gauged supergravity

被引：7
作者：
Behrndt, K [1 ]
机构：
[1] CALTECH, Pasadena, CA 91125 USA
[2] Univ So Calif, Ctr Theoret Phys, CIT, Los Angeles, CA 90089 USA
来源：
PHYSICS LETTERS B | 2000年 / 487卷 / 1-2期
关键词：
D O I：
10.1016/S0370-2693(00)00817-0
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We discuss domain wall solutions of 5-dimensional supergravity corresponding to a cosine-superpotential, which is derived by a gauging of the two Abelian isometries of the scaler coset SU(2,1)/U(2). We argue that this potential can he obtained from M-theory compactification in the presence of G-fluxes and an M5-brane instanton gas. If Lye decouple the volume scalar of the internal space, the superpotential allows for two extrema, which are either ultra-violet or infra-red attractive. Asymptotically we approach therefore either the boundary or the Killing horizon of an anti-deSitter space or flat spacetime for a vanishing cosmological constant. If the volume scalar does not decouple, we obtain a run-away potential corresponding to dilatonic domain walls, which always run towards a vanishing cosmological constant. (C) 2000 Elsevier Science B.V. All rights reserved.
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页码：30 / 35
页数：6
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