Gravity Dual of a Quantum Hall Plateau Transition

Details Gravity Dual of a Quantum Hall Plateau Transition Gravity Dual of a Quantum Hall Plateau Transition

2008-09-10

arxiv.org/abs/0809.1876v3

JHEP 0811:020,2008

Physics

High Energy Physics

High Energy Physics - Theory

27 pages, 6 figures, harvmac; v2, references and minor comments added, version to be submitted to JHEP; v3, corrections to sec

Scientific paper

10.1088/1126-6708/2008/11/020

We show how to model the transition between distinct quantum Hall plateaus in terms of D-branes in string theory. A low energy theory of 2+1 dimensional fermions is obtained by considering the D3-D7 system, and the plateau transition corresponds to moving the branes through one another. We study the transition at strong coupling using gauge/gravity duality and the probe approximation. Strong coupling leads to a novel kind of plateau transition: at low temperatures the transition remains discontinuous due to the effects of dynamical symmetry breaking and mass generation, and at high temperatures is only partially smoothed out.

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