Impurities and polarons in bosonic quantum gases: a review on recent progress

F Grusdt, N Mostaan, E Demler, LAP Ardila - arXiv preprint arXiv …, 2024 - arxiv.org
This review describes the field of Bose polarons, arising when mobile impurities are
immersed into a bosonic quantum gas. The latter can be realized by a Bose-Einstein …

Observation of a smooth polaron-molecule transition in a degenerate Fermi gas

G Ness, C Shkedrov, Y Florshaim, OK Diessel… - Physical Review X, 2020 - APS
Understanding the behavior of an impurity strongly interacting with a Fermi sea is a long-
standing challenge in many-body physics. When the interactions are short ranged, two …

Impurities in a one-dimensional Bose gas: the flow equation approach

F Brauneis, HW Hammer, M Lemeshko, AG Volosniev - SciPost Physics, 2021 - scipost.org
A few years ago, flow equations were introduced as a technique for calculating the ground-
state energies of cold Bose gases with and without impurities. In this paper, we extend this …

Molecule-photon interactions in phononic environments

M Reitz, C Sommer, B Gurlek, V Sandoghdar… - Physical Review …, 2020 - APS
Molecules constitute compact hybrid quantum optical systems that can interface photons,
electronic degrees of freedom, localized mechanical vibrations, and phonons. In particular …

Impurity in a heteronuclear two-component Bose mixture

G Bighin, A Burchianti, F Minardi, T Macrì - Physical Review A, 2022 - APS
We study the fate of an impurity in an ultracold heteronuclear Bose mixture, focusing on the
experimentally relevant case of a K 41-Rb 87 mixture, with the impurity in a K 41 hyperfine …

Molecular impurities as a realization of anyons on the two-sphere

M Brooks, M Lemeshko, D Lundholm, E Yakaboylu - Physical Review Letters, 2021 - APS
Studies on the experimental realization of two-dimensional anyons in terms of quasiparticles
have been restricted, so far, to only anyons on the plane. It is known, however, that the …

[PDF][PDF] Quantum optics with molecules

M Reitz - 2022 - opus4.kobv.de
Molecules constitute compact hybrid quantum optical systems that can efficiently interface
mechanical degrees of freedom with optical or infrared transitions. However, the coupling of …

Effective pair interaction between impurity particles induced by a dense Fermi gas

D Mitrouskas, P Pickl - arXiv preprint arXiv:2105.02841, 2021 - arxiv.org
We study the dynamics of a small number of impurity particles coupled to the ideal Fermi gas
in a $ d $-dimensional box. The impurities interact with the fermions via a two-body potential …

Diagrammatic Monte Carlo for electronic correlation in molecules: High-order many-body perturbation theory with low scaling

G Bighin, QP Ho, M Lemeshko, TV Tscherbul - Physical Review B, 2023 - APS
We present a low-scaling diagrammatic Monte Carlo approach to molecular correlation
energies. Using combinatorial graph theory to encode many-body Hugenholtz diagrams, we …

Rotation of coupled cold molecules in the presence of a many-body environment

X Li - 2020 - research-explorer.ista.ac.at
The oft-quoted dictum by Arthur Schawlow:``A diatomic molecule has one atom too
many''has been disavowed. Inspired by the possibility to experimentally manipulate and …