Fluctuations of a holographic quantum Hall fluid

Details Fluctuations of a holographic quantum Hall fluid Fluctuations of a holographic quantum Hall fluid

2011-07-19

arxiv.org/abs/1107.3836v2

JHEP 01 (2012) 072

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, 8 figures; v.2 figures improved, 2 figures added, and text clarified particularly in Sec. 5, to appear in JHEP

Scientific paper

We analyze the neutral spectrum of the holographic quantum Hall fluid described by the D2-D8' model. As expected for a quantum Hall state, we find the system to be stable and gapped and that, at least over much of the parameter space, the lowest excitation mode is a magneto-roton. In addition, we find magneto-rotons in higher modes as well. We show that these magneto-rotons are direct consequences of level crossings between vector and scalar modes.

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