The Benefits of Stress: Resolution of the Lifshitz Singularity
Jul, 2012
16 pages
Published in:
- Phys.Rev.D 86 (2012) 106008
e-Print:
- 1207.0171 [hep-th]
Report number:
- SLAC-PUB-15119,
- SU-ITP-12-18
Citations per year
Abstract: (arXiv)
Through the AdS/CFT correspondence, Lifshitz spacetimes describe field theories with dynamical scaling (). Although curvature invariants are small, the Lifshitz metric exhibits a null singularity in the IR with a large tidal force that excites string oscillator modes. However, Lifshitz is not a vacuum solution of the Einstein equations -- the metric is supported by nontrivial matter content which must be taken into account in analyzing the propagation of test objects. In this paper, we consider the interaction of a string with a D0-brane density in the IR which supports a class of UV-complete Lifshitz constructions. We show that string/D-brane scattering in the Regge limit slows the string significantly, preventing divergent mode production and resolving the would-be singularity in string propagation.Note:
- 16 pages/ v2: new references added
- 11.25.Tq
- 04.60.Cf
- space-time: Lifshitz
- string: interaction
- singularity
- propagation
- scattering
- Regge
- energy loss
References(40)
Figures(0)
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