311 citations · 423 across the 24 of their papers we have counts for
6 papers · 1 filter
Quantum Geometry and Topology of Bulk Plasmons in Weyl Metals
Hong-Yi Xie, Peter Abbamonte, Bruno Uchoa
We address the quantum geometric structure of plasmons in Fermi surfaces enclosing a topological charge. We demonstrate that Weyl fermion plasmons have monopole structure, are topo…
Plasmon-driven electron-hole pair formation in a non-equilibrium Fermi liquid
Rishi Acharya, Eli Gerber, Nina Bielinski +13
Collective modes in Fermi liquids are usually regarded as dissipation channels that relax electronic excitations through Landau damping. Whether such modes can instead mediate the…
Fundamental Tests of Quantum Geometric Bounds in Ionic and Covalent Insulators using Inelastic X-Ray Scattering
David Bałut, Barry Bradlyn, Marcus D. Collins +1
Quantum geometry underlies many fundamental properties of materials, but it has remained largely inaccessible to direct experiment. Here we demonstrate that inelastic x-ray scatter…
Observation of a dynamic magneto-chiral instability in photoexcited tellurium
Yijing Huang, Nick Abboud, Yinchuan Lv +12
In a system of charged chiral fermions driven out of equilibrium, an electric current parallel to the magnetic field can generate a dynamic instability by which electromagnetic wav…
Quantum entanglement and quantum geometry measured with inelastic X-ray scattering
David Bałut, Barry Bradlyn, Peter Abbamonte
Using inelastic X-ray scattering (IXS), we experimentally investigate the quantum geometry and quantum information in the large-gap insulator, LiF. Using sum rules for the density-…
Spectral Density and Sum Rules for Second-Order Response Functions
Barry Bradlyn, Peter Abbamonte
Sum rules for linear response functions give powerful and experimentally-relevant relations between frequency moments of response functions and ground state properties. In particul…