2012/11/30 by Niko Jokela, Matti Järvinen, Matti Jarvinen +1
Physics and Astronomy · #Black Holes and Theoretical Physics #Holography #Materials science #Metal #Metallurgy #Nonlinear Photonic Systems #Optics #Physics #Quantum Electrodynamics and Casimir Effect #cond-mat.str-el #hep-th
paper · pdf · doi:10.1007/jhep02(2013)007
published as JHEP 02 (2013) 007 · 25 pages, 13 figures; v2. minor improvements to match published version
openalex publication_date 2013/02/01 · arxiv created 2013/02/12 · arxiv updated 2013/02/13 · openalex created_date 2020/11/23 · openalex updated_date 2026/08/05
We analyze the quasinormal modes of the D2-D8' model of 2+1-dimensional, strongly-coupled, charged fermions in a background magnetic field and at nonzero density. The model is known to include a quantum Hall phase with integer filling fraction. As expected, we find a hydrodynamical diffusion mode at small momentum and the nonzero-temperature holographic zero sound, which becomes massive above a critical magnetic field. We confirm the previously-known thermodynamic instability. In addition, we discover an instability at low temperature, large mass, and in a charge density and magnetic field range near the quantum Hall phase to an inhomogeneous striped phase.