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 cert...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2016-03-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321316000328 |
| Summary: | 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. |
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| ISSN: | 0550-3213 1873-1562 |