Holographic transport and density waves

Understand

We consider transport of heat and charge in holographic lattices which are phases of strongly coupled matter in which translations are broken explicitly.

• In these systems, we study a spontaneous density wave that breaks translations incommensurately to the lattice.
• The emergent gapless mode due to symmetry breaking couples to the heat current impacting transport at low frequencies.
• We study the effects of this coupling when the mode is freely sliding as well as after the introduction of a small deformation parameter which pins down the density wave.