14 citations · 29 across the 8 of their papers we have counts for
8 papers
Mass-gap functional determinant approach for mobile Fermi polarons
Emilio Ramos Rodríguez, Eugen Dizer, Xin Chen +1
We extend the functional determinant approach (FDA), previously restricted to static impurities, to the case of finite-mass impurities by using the mass-gap description of Fermi po…
Quantum Simulation of Semiconductor Excitons in Ultracold Dipolar Fermi Gases
Florian Hirsch, Oriana K. Diessel, Rafał Ołdziejewski +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, Rafał Ołdziejewski +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 Rodríguez +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…
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…
Momentum-dependent quasiparticle properties of the Fermi polaron from the functional renormalization group
Jonas von Milczewski, Richard Schmidt
We study theoretically the lifetimes of attractive and repulsive Fermi polarons, as well as the molecule at finite momentum in three dimensions. To this end, we develop a new techn…
Superconductivity induced by strong electron-exciton coupling in doped atomically thin semiconductor heterostructures
Jonas von Milczewski, Xin Chen, Atac Imamoglu +1
We study a mechanism to induce superconductivity in atomically thin semiconductors where excitons mediate an effective attraction between electrons. Our model includes interaction…
Feshbach Resonances in Exciton-Charge-Carrier Scattering in Semiconductor Bilayers
Marcel Wagner, Rafał Ołdziejewski, 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…