Suppression of Shot Noise in a Dirty Marginal Fermi Liquid
arXiv:2312.03071 · doi:10.1103/PhysRevB.110.L081102
Abstract
We study shot noise in a two-dimensional, disordered marginal Fermi liquid (MFL) driven out of equilibrium. We consider electrons with Planckian dissipation on the Fermi surface coupled to quantum-critical bosons in the presence of disorder. In the non-interacting and strong electron-boson drag limits, MFL effects disappear and our theory reproduces known results. For the case where the bosons remain in equilibrium, inelastic scattering strongly suppresses the noise by dissipating the injected energy. Interestingly, we find that MFL effects do play a role in this regime, and give a weak enhancement on top of the otherwise strong suppression. Our results suggest that shot noise can be strongly suppressed in quantum-critical systems, and this scenario may be relevant to recent measurements in a heavy-fermion strange metal.
arXiv commentv2: 6+9 pages, 4+1 figures, published version
References in corpus (27)
- Shot Noise in Mesoscopic Conductors
- Novel Symmetry Classes in Mesoscopic Normal-Superconducting Hybrid Structures
- Topological insulators and superconductors: ten-fold way and dimensional hierarchy
- Observation of the e/3 Fractionally Charged Laughlin Quasiparticles
- Keldysh technique and non-linear sigma-model: basic principles and applications
- Recent Developments in Non-Fermi Liquid Theory
- Universal theory of strange metals from spatially random interactions
- Large theory of critical Fermi surfaces
- Noisy Kondo impurities
- Two-electron bunching in transport through a QD induced by Kondo correlations
- Electron pairing in the pseudogap state revealed by shot noise in copper-oxide junctions
- First-Matsubara-frequency rule in a Fermi liquid. Part II: Optical conductivity and comparison to experiment
- Transport properties of strongly coupled electron-phonon liquids
- Hawking Radiation and Non-equilibrium Quantum Critical Current Noise
- Large theory of critical Fermi surfaces II: conductivity
- Two dimensional non-Fermi liquid metals: a solvable large N limit
- Shot noise in a strange metal
- How non-Fermi liquids cure their infrared divergences
- Response theory of the ergodic many-body delocalized phase: Keldysh Finkel'stein sigma models and the 10-fold way
- Theory of shot noise in strange metals
- Interaction-induced metallicity in a two-dimensional disordered non-Fermi liquid
- Shot Noise in Disordered Junctions: Interaction Corrections
- Quantum Interference of Hydrodynamic Modes in a Dirty Marginal Fermi Liquid
- Metallic phase in a two-dimensional disordered Fermi system with singular interactions
- Topological Anomalous Skin Effect in Weyl Superconductors
- Interplay of superconductivity and localization near a 2D ferromagnetic quantum critical point
- Enhancement of Superconductivity in a Dirty Marginal Fermi Liquid