Efimov physics: a review

P Naidon, S Endo - Reports on Progress in Physics, 2017 - iopscience.iop.org
This article reviews theoretical and experimental advances in Efimov physics, an array of
quantum few-body and many-body phenomena arising for particles interacting via short …

Metastability and coherence of repulsive polarons in a strongly interacting Fermi mixture

C Kohstall, M Zaccanti, M Jag, A Trenkwalder… - Nature, 2012 - nature.com
Ultracold Fermi gases with tunable interactions provide a test bed for exploring the many-
body physics of strongly interacting quantum systems,,,. Over the past decade, experiments …

Impurity in a Bose-Einstein condensate and the Efimov effect

J Levinsen, MM Parish, GM Bruun - Physical Review Letters, 2015 - APS
We investigate the zero-temperature properties of an impurity particle interacting with a Bose-
Einstein condensate (BEC), using a variational wave function that includes up to two …

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 …

Observation of a modulational instability in Bose-Einstein condensates

PJ Everitt, MA Sooriyabandara, M Guasoni, PB Wigley… - Physical Review A, 2017 - APS
We observe the breakup dynamics of an elongated cloud of condensed Rb 85 atoms placed
in an optical waveguide. The number of localized spatial components observed in the …

Probing the interface of a phase-separated state in a repulsive Bose-Fermi mixture

RS Lous, I Fritsche, M Jag, F Lehmann, E Kirilov… - Physical Review Letters, 2018 - APS
We probe the interface between a phase-separated Bose-Fermi mixture consisting of a
small Bose-Einstein condensate of K 41 residing in a large Fermi sea of Li 6. We quantify the …

Exploring Ultracold Collisions in Fermi Mixtures: Feshbach Resonances and Scattering Properties of a Novel Alkali-Transition Metal System

A Ciamei, S Finelli, A Trenkwalder, M Inguscio… - Physical Review Letters, 2022 - APS
We investigate ultracold collisions in a novel mixture of Li 6 and Cr 53 fermionic atoms,
discovering more than 50 interspecies Feshbach resonances via loss spectroscopy …

Few-body physics in resonantly interacting ultracold quantum gases

JP D'Incao - Journal of Physics B: Atomic, Molecular and Optical …, 2018 - iopscience.iop.org
We provide a general discussion on the importance of three-body Efimov physics for
strongly interacting ultracold quantum gases. Using the adiabatic hyperspherical …

Resonantly Interacting Fermi-Fermi Mixture of and

C Ravensbergen, E Soave, V Corre, M Kreyer… - Physical Review Letters, 2020 - APS
We report on the realization of a Fermi-Fermi mixture of ultracold atoms that combines mass
imbalance, tunability, and collisional stability. In an optically trapped sample of Dy 161 and K …

Fate of the Bose polaron at finite temperature

B Field, J Levinsen, MM Parish - Physical Review A, 2020 - APS
We consider an impurity immersed in a Bose-Einstein condensate with tunable boson-
impurity interactions. Such a Bose polaron has recently been predicted to exhibit an …