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arXiv · 1503.03481

On Holographic Insulators and Supersolids

Elias Kiritsis·Jie Ren
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Abstract

We obtain holographic realizations for systems that have strong similarities to Mott insulators and supersolids, after examining the ground states of Einstein-Maxwell-scalar systems. The real part of the AC conductivity has a hard gap and a discrete spectrum only. We add momentum dissipation to resolve the delta function in the conductivity due to translational invariance. We develop tools to directly calculate the Drude weight for a large class of solutions and to support our claims. Numerical RG flows are also constructed to verify that such saddle points are IR fixed points of asymptotically AdS_4 geometries.

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Elias Kiritsis, Jie Ren. 2015-03-11. On Holographic Insulators and Supersolids. https://doi.org/10.1007/jhep09(2015)168

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