Cold hybrid ion-atom systems

M Tomza, K Jachymski, R Gerritsma, A Negretti… - Reviews of modern …, 2019 - APS
Hybrid systems of laser-cooled trapped ions and ultracold atoms combined in a single
experimental setup have recently emerged as a new platform for fundamental research in …

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 …

Bipolarons in a Bose-Einstein condensate

A Camacho-Guardian, LA Peña Ardila, T Pohl… - Physical review …, 2018 - APS
Mobile impurities in a Bose-Einstein condensate form quasiparticles called polarons. Here,
we show that two such polarons can bind to form a bound bipolaron state. Its emergence is …

Quench dynamics and orthogonality catastrophe of Bose polarons

SI Mistakidis, GC Katsimiga, GM Koutentakis, T Busch… - Physical review …, 2019 - APS
We monitor the correlated quench induced dynamical dressing of a spinor impurity
repulsively interacting with a Bose-Einstein condensate. Inspecting the temporal evolution of …

Bose polarons in ultracold atoms in one dimension: beyond the Fröhlich paradigm

F Grusdt, GE Astrakharchik, E Demler - New Journal of Physics, 2017 - iopscience.iop.org
Mobile impurity atoms immersed in Bose–Einstein condensates provide a new platform for
exploring Bose polarons. Recent experimental advances in the field of ultracold atoms make …

Universality of an impurity in a Bose-Einstein condensate

SM Yoshida, S Endo, J Levinsen, MM Parish - Physical Review X, 2018 - APS
We consider the ground-state properties of an impurity particle (“polaron”) resonantly
interacting with a Bose-Einstein condensate (BEC). Focusing on the equal-mass system, we …

Many-body bound states and induced interactions of charged impurities in a bosonic bath

GE Astrakharchik, LAP Ardila, K Jachymski… - Nature …, 2023 - nature.com
Induced interactions and bound states of charge carriers immersed in a quantum medium
are crucial for the investigation of quantum transport. Ultracold atom-ion systems can …

Bose polaron and the Efimov effect: A Gaussian-state approach

A Christianen, JI Cirac, R Schmidt - Physical Review A, 2022 - APS
Since the Efimov effect was introduced, a detailed theoretical understanding of Efimov
physics has been developed in the few-body context. However, it has proven challenging to …

Bose polarons at finite temperature and strong coupling

NE Guenther, P Massignan, M Lewenstein, GM Bruun - Physical review letters, 2018 - APS
A mobile impurity coupled to a weakly interacting Bose gas, a Bose polaron, displays
several interesting effects. While a single attractive quasiparticle is known to exist at zero …

Landau effective interaction between quasiparticles in a Bose-Einstein condensate

A Camacho-Guardian, GM Bruun - Physical Review X, 2018 - APS
Landau's description of the excitations in a macroscopic system in terms of quasiparticles
stands out as one of the highlights in quantum physics. It provides an accurate description of …