Abstract
In this note we study the effects of a magnetic field on transport using holographic models with broken translational invariance. We show that, after carefully sub-tracting off non-trivial magnetisation currents, it is possible to express the DC transport currents of the boundary theory in terms of properties of a black hole horizon. This allows us to obtain simple analytic expressions for the electrical, thermoelectric and heat conductivity tensors. Our results apply to both isotropic and anisotropic models, including holographic Q-lattices and to certain theories where translational invariance is broken by linear sources for axions.
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ArXiv ePrint: 1502.03789
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Blake, M., Donos, A. & Lohitsiri, N. Magnetothermoelectric response from holography. J. High Energ. Phys. 2015, 124 (2015). https://doi.org/10.1007/JHEP08(2015)124
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DOI: https://doi.org/10.1007/JHEP08(2015)124