On asymptotic freedom and confinement from type-IIB supergravity

被引：59

作者：

Kehagias, A ^{[1
]}

Sfetsos, K ^{[1
]}

机构：

[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

来源：

PHYSICS LETTERS B | 1999年 / 456卷 / 01期

关键词：

D O I：

10.1016/S0370-2693(99)00431-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a new type-IIB supergravity vacuum that describes the strong coupling regime of a non-supersymmetric gauge theory. The latter has a running coupling such that the theory becomes asymptotically free in the ultraviolet. It also has a running theta angle due to a non-vanishing axion field in the supergravity solution. We also present a worm-hole solution, which has finite action per unit four-dimensional volume and two asymptotic regions, a flat space and an AdS(5) X S-5. The corresponding N = 2 gauge theory, instead of being finite, has a running coupling. We compute the quark-antiquark potential in this case and find that it exhibits, under certain assumptions, an area-law behaviour for large separations. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：22 / 27

页数：6

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