Holographic sliding stripes

Understand

Holographic models provide unique laboratories to investigate non-linear physics of transport in inhomogeneous systems.

• We provide a detailed account of both DC and AC conductivities in a defect CFT with spontaneous stripe order.
• The spatial symmetry is broken at large chemical potential and the resulting ground state is a combination of a spin and charge density wave.
• An infinitesimal applied electric field across the stripes will cause the stripes to slide over the underlying density of smeared impurities, a phenomenon which can be associated with the Goldstone mode for the spontaneously broken translation symmetry.