Propagation of shear stress in strongly interacting metallic Fermi liquids enhances transmission of terahertz radiation

Abstract

A highlight of Fermi-liquid phenomenology, as explored in neutral ${}^3$He, is the observation that in the collisionless regime shear stress propagates as if one is dealing with the transverse phonon of a solid. The existence of this $"$transverse zero sound$"$ requires that the quasiparticle mass enhancement exceeds a critical value. Could such a propagating shear stress also exist in strongly correlated electron systems? Despite some noticeable differences with the neutral case in the Galilean continuum, we arrive at the verdict that transverse zero sound should be generic. We present an experimental setup that should be exquisitely sensitive in this regard: the transmission of terahertz radiation through a thin slab of heavy-fermion material will be strongly enhanced at low temperature and accompanied by giant oscillations, which reflect the interference between light itself and the $"$material photon$"$ being the actual manifestation of transverse zero sound in the charged Fermi liquid.

12 pages, 3 figures

References in corpus (7)

• Non-Drude universal scaling laws for the optical response of local Fermi liquids
• Electromagnetic properties of viscous charged fluids
• Electron hydrodynamics with a polygonal Fermi surface
• Propagation of shear stress in strongly interacting metallic Fermi liquids enhances transmission of terahertz radiation
• Optical signatures of shear collective modes in strongly interacting Fermi liquids
• Quantum Paracrystalline Shear Modes of the Electron Liquid
• Electromagnetic response of strongly coupled plasmas

Cited by in corpus (13)

• Collective modes in interacting two-dimensional tomographic Fermi liquids
• Propagation of shear stress in strongly interacting metallic Fermi liquids enhances transmission of terahertz radiation
• The universal shear conductivity of Fermi liquids and spinon Fermi surface states and its detection via spin qubit noise magnetometry
• Optical signatures of shear collective modes in strongly interacting Fermi liquids
• Collinear scattering and long-lived excitations in two-dimensional electron fluids
• Nonlocal conductivity, continued fractions and current vortices in electron fluids
• Linear-in-temperature conductance in two-dimensional electron fluids
• Soft modes in Fermi liquids at arbitrary temperatures
• Two-dimensional electron gases as non-Newtonian fluids
• Shear Bernstein modes in a two-dimensional electron liquid
• Acoustic plasmons and isotropic short-range interaction in two-component electron liquids
• Possible zero sound in layered perovskites with ferromagnetic $s$-$d$ exchange interaction
• Tomographic collective modes in a magnetic field