Magneto-roton excitation in a holographic quantum Hall fluid
arXiv:1012.1230 · doi:10.1007/JHEP02(2011)104
Abstract
We compute the neutral bosonic excitation spectra of the holographic quantum Hall fluid described by the D3-D7' system. We find that the system is stable, gapped, and, in a range of parameters, exhibits a spectrum of low-lying excitations very similar to that of a quantum Hall fluid, including a magneto-roton excitation.
17 pages, 15 figures; v2: added references, v3: discussion added