Charge transport in holography with momentum dissipation

Understand

In this work, we examine how charge is transported in a theory where momentum is relaxed by spatially dependent, massless scalars.

• We analyze the possible IR phases in terms of various scaling exponents and the (ir)relevance of operators in the IR effective holographic theory with a dilaton.
• We compute the (finite) resistivity and encounter broad families of (in)coherent metals and insulators, characterized by universal scaling behaviour.
• The optical conductivity at zero temperature and low frequencies exhibits power tails which can violate scaling symmetries, due to the running of the dilaton.