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Paper detail

A Holographic Model of Quantum Hall Transition

We consider a phenomenological holographic model, inspired by the D3/D7 system with a 2+1 dimensional intersection, at finite chemical potential and magnetic field. At large 't Hooft coupling the system is unstable and needs regularization; the UV cutoff can be decoupled by considering a certain double scaling limit. At finite chemical potential the model exhibits a phase transition between states with filling fractions plus and minus one--half as the magnetic field is varied. By varying the parameters of the model, this phase transition can be made to happen at arbitrary values of the magnetic field.

preprint2015arXivOpen access
Andrea MezzaliraAndrei Parnachev
cond-mat.str-elhep-th
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Andrea MezzaliraAndrei Parnachev

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