Dilatonic repulsons and confinement via the AdS/CFT correspondence
- Physics Department, University of Seoul, Seoul 130-743 (Korea, Republic of)
- Department of Physics and Astronomy, University of California at Los Angeles, Los Angeles, California 90095 (United States)
- Department of Physics, Technion, Israel Institute of Technology, Haifa 32000 (Israel)
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043 (Japan)
We study a class of dilatonic deformations of asymptotically AdS{sub 5}xS{sup 5} geometry analytically and numerically. The spacetime is nonsupersymmetric and suffers from a naked singularity. We propose that the causality bound may serve as a criterion for such a geometry with a naked singularity to still make sense in the AdS/CFT correspondence. We show that the static string, the one corresponding to a large Wilson loop in the dual gauge theory, reveals confinement in a certain range of parameters of our solutions, where the singularity exhibits the repulsion that can well cloak the singularity from the static string probe. In particular, we find the exact expression for the tension of the QCD strings. We also discuss a possible interpretation of our solution in terms of unstable branes and their tachyon matter.
- OSTI ID:
- 20705539
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 70, Issue 8; Other Information: DOI: 10.1103/PhysRevD.70.086004; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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