5 papers
Quantum Simulation of Semiconductor Excitons in Ultracold Dipolar Fermi Gases
Florian Hirsch, Oriana K. Diessel, RafaÅ OÅdziejewski +1
Inspired by the progress on the study of exciton physics in atomically thin transition metal dichalcogenide (TMD) semiconductors, we investigate the formation of analogs of exciton…
Emergent Fermi polarons in Dirac materials
Xin Chen, Eugen Dizer, RafaÅ OÅdziejewski +3
We investigate band-structure effects on the absorption spectra of quantum impurities in Dirac materials. We uncover the formation of novel quasiparticles -- Dirac-Fermi polarons -…
Mass-gap description of heavy impurities in Fermi gases
Xin Chen, Eugen Dizer, Emilio Ramos RodrÃguez +1
We present a unified theory that connects the quasiparticle picture of Fermi polarons for mobile impurities to the Anderson orthogonality catastrophe for static impurities. By oper…
Feshbach Resonances in Exciton-Charge-Carrier Scattering in Semiconductor Bilayers
Marcel Wagner, RafaÅ OÅdziejewski, Félix Rose +4
Feshbach resonances play a vital role in the success of cold atoms investigating strongly-correlated physics. The recent observation of their solid-state analog in the scattering o…
Subleading logarithmic behavior in the parquet formalism
Marcel Gievers, Richard Schmidt, Jan von Delft +1
The Fermi-edge singularity in x-ray absorption spectra of metals is a paradigmatic case of a logarithmically divergent perturbation series. Prior work has thoroughly analyzed the l…