New black holes with hyperscaling violation and transports of quantum critical points with magnetic impurity

Abstract

We consider the magneto-transports of quantum matters doped with magnetic impurities near the quantum critical points(QCP). For this, we first find new black hole solution with hyper-scaling violation which is dual to such system. By considering the fluctuation near this exact solution, we calculated all transport coefficients using the holographic method. We applied our result to the surface state of the topological insulator with magnetic doping and found two QCP's, one bosonic and the other fermionic. It turns out that doped Bi${}_2$Se${}_3$ and Bi${}_2$Te${}_3$ correspond to different QCP's. We also investigated transports of QCP's as functions of physical parameters and found that there are phase transitions as well as crossovers from weak localization to weak anti-localization.

arXiv comment35 pages, 26 figures

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Cited by in corpus (5)

• Stationary equilibrium of test particles near charged black branes with the hyperscaling violating factor
• Bianchi IX geometry and the Einstein-Maxwell theory
• Hall Angle of a Spatially Random Vector Model
• Determination of Dynamical exponents of Graphene at quantum critical point by holography
• The magnetic effect on strongly correlated system with two currents near the QCP from holography