An effective framework for strange metallic transport

• DOI: 10.1007/jhep12(2024)118
• Publication Date: 2025-01-02T02:37:15Z
• Authors: Benoît Douçot; Ayan Mukhopadhyay; Giuseppe Policastro; Sutapa Samanta; Hareram Swain
• Keywords: Optical conductivity; Exponent; Fermi energy

A bstract Semi-holography, originally proposed as a model for conducting lattice electrons coupled to holographic critical sector, leads an effective theory of non-Fermi liquids with only few relevant interactions on the Fermi surface in large N limit. refined version such theories has two couplings, which give and Fermi-liquid-like contributions self-energy, respectively. We show that low co-dimension sub-manifold exists space semi-holographic strange metallic behavior is manifested can be obtained just by tuning ratio couplings. On this sub-manifold, product spectral function temperature approximately independent exponent, energy, at all frequencies near when expressed terms suitably scaled momentum frequency variables. This quasi-universal linear-in- T dc resistivity Planckian dissipation over range temperatures, we also obtain −3 scaling Hall conductivity higher temperatures. The fits well photoemission spectroscopic data without varying exponent doping. Combining results optical conductivity, construct generalized Drude phenomenology strange-metallic behavior, satisfies non-trivial consistency tests. Finally, discuss possible dynamical mechanism fine-tuning couplings necessary realize typical state.