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Lifshitz from AdS at finite temperature and top down models

MPG-Autoren
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Korovin,  Yegor
KdV Institute for Mathematics;
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Volltexte (frei zugänglich)

1306.3344.pdf
(Preprint), 307KB

JHEP11(2013)127.pdf
(beliebiger Volltext), 364KB

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Zitation

Korovin, Y., Skenderis, K., & Taylor, M. (2013). Lifshitz from AdS at finite temperature and top down models. Journal of high energy physics: JHEP, 2013(11): 127. doi:10.1007/JHEP11(2013)127.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0029-6FEA-C
Zusammenfassung
We construct analytically an asymptotically Lifshitz black brane with dynamical exponent z=1+epsilon^2 in an Einstein-Proca model, where epsilon is a small parameter. In previous work we showed that the holographic dual QFT is a deformation of a CFT by the time component of a vector operator and the parameter epsilon is the corresponding deformation parameter. In the black brane background this operator additionally acquires a vacuum expectation value. We explain how the QFT Ward identity associated with Lifshitz invariance leads to a conserved mass and compute analytically the thermodynamic quantities showing that they indeed take the form implied by Lifshitz invariance. In the second part of the paper we consider top down Lifshitz models with dynamical exponent close to one and show that they can be understood in terms of vector deformations of conformal field theories. However, in all known cases, both the conformal field theory and its Lifshitz deformations have modes that violate the Breitenlohner-Freedman bound.