In this review, we discuss the properties of a few impurity atoms immersed in a gas of
ultracold fermions—the so-called Fermi polaron problem. On one hand, this many-body …

In this report we discuss the dynamical response of heavy quantum impurities immersed in a
Fermi gas at zero and at finite temperature. Studying both the frequency and the time …

We explore repulsive Fermi polarons in one-dimensional harmonically trapped few-body
mixtures of ultracold atoms using as a case example a 6 Li-40 K mixture. A characterization …

We theoretically investigate how quasiparticle properties of an attractive Fermi polaron are
affected by nonzero temperature and finite impurity concentration in three dimensions and in …

We investigate the zero-temperature quasiparticle properties of a mobile impurity immersed
in a strongly interacting Fermi superfluid at the crossover from a Bose-Einstein condensate …

A central quantity of importance for ultracold atoms is contact, which measures two-body
correlations at short distances in dilute systems. It appears in universal relations among …

The notion of a polaron, originally introduced in the context of electrons in ionic lattices,
helps us to understand how a quantum impurity behaves when being immersed in and …

We investigate the thermal evolution of radio-frequency (RF) spectra of a spin-imbalanced
Fermi gas near a Feshbach resonance in which degenerate Fermi-polaron and classical …

We theoretically investigate attractive and repulsive Fermi polarons in three dimensions at
finite temperature and impurity concentration through the many-body T-matrix theory and …

We investigate the momentum distribution function of a single distinguishable impurity
particle which formed a polaron state in a gas of either free fermions or Tonks-Girardeau …