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Semi-local quantum criticality in string/M-theory.

Donos, Aristomenis and Gauntlett, Jerome P. and Pantelidou, Christiana (2013) 'Semi-local quantum criticality in string/M-theory.', Journal of high energy physics., 2013 (3). p. 103.

Abstract

Semi-local quantum critical behaviour in D − 1 spacetime dimensions can be holographically described by metrics that are conformal to AdS 2 ×R D−2 , with the conformal factor characterised by a parameter η. We analyse such “η-geometries” in a top-down setting by focussing on the U(1)4 truncation of D = 4 N = 8 gauged supergravity. The model has extremal black hole solutions carrying three non-zero electric or magnetic charges which approach AdS 4 in the UV and an η = 1 geometry in the IR. Adding a fourth charge provides a mechanism to resolve the singularity of the η-geometry, replacing it with an AdS 2 ×R 2 factor in the IR, while maintaining a large region where the η-geometry scaling is approximately valid. Some of the magnetically charged black hole solutions preserve supersymmetry while others just preserve it in the IR. Finally, we show that η-geometries, with various values of η, can be obtained from the dimensional reduction of geometries consisting of AdS or Lifshitz geometries with flat directions.

Item Type:Article
Keywords:Black Holes in String Theory, AdS-CFT Correspondence, Holography and condensed matter physics, (AdS/CMT).
Full text:(NA) Not Applicable
Download PDF (arXiv version)
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1007/JHEP03(2013)103
Publisher statement:© SISSA 2013. Published for SISSA by Springer. The final publication is available at Springer via http://dx.doi.org/10.1007/JHEP03(2013)103.
Date accepted:18 February 2013
Date deposited:No date available
Date of first online publication:March 2013
Date first made open access:No date available

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