Holographic quantum criticality and strange metal transport

Details Holographic quantum criticality and strange metal transport Holographic quantum criticality and strange metal transport

2010-12-15

arxiv.org/abs/1012.3464v2

Physics

Condensed Matter

Strongly Correlated Electrons

39 pages, 7 figures, (v2) Major revision that considers a wider range of phenomena, explanations and comparisons to experiment

Scientific paper

A holographic model of a quantum critical theory at a finite but low temperature, and finite density is studied. The model exhibits non-relativistic z=2 Schr\"odinger symmetry and is realized by the Anti-de-Sitter-Schwarzschild black hole in light-cone coordinates. Our approach addresses the electrical conductivities in the presence or absence of an applied magnetic field and contains a control parameter that can be associated to quantum tuning via charge carrier doping or an external field in correlated electron systems. The Ohmic resistivity, the inverse Hall angle, the Hall coefficient and the magnetoresistance are shown to be in good agreement with experimental results of strange metals at very low temperature. The holographic model also predicts new scaling relations in the presence of a magnetic field.

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