4.4 Article

Magneto-roton excitation in a holographic quantum Hall fluid

Journal

JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 2, Pages -

Publisher

SPRINGER
DOI: 10.1007/JHEP02(2011)104

Keywords

D-branes; AdS-CFT Correspondence; Holography and condensed matter physics (AdS/CMT)

Funding

  1. Israel Science Foundation [392/09]
  2. Lady Davis Foundation
  3. European Union [FP7-REGPOT-2008-1-CreteHEPCosmo-228644]
  4. Asia Pacific Center for Theoretical Physics (APCTP)

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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 fractional quantum Hall fluid, including a magneto-roton excitation.

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