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 …

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 …

We consider the dynamics of an impurity atom immersed in an ideal Fermi gas at zero
temperature. We focus on the coherent quantum evolution of the impurity following a quench …

We investigate a mixture of ultracold fermionic K 40 atoms and weakly bound Li 6 K 40
dimers on the repulsive side of a heteronuclear atomic Feshbach resonance. By radio …

We introduce a simple determinant diagrammatic Monte Carlo algorithm to compute the
ground-state properties of a particle interacting with a Fermi sea through a zero-range …

We investigate the properties of a strongly interacting imbalanced mixture of bosonic K 41
impurities immersed in a Fermi sea of ultracold Li 6 atoms. This enables us to explore the …

We study the problem of a single impurity of mass M immersed in a Fermi sea of particles of
mass m. The impurity and the fermions interact through an s-wave narrow Feshbach …

A three-component Fermi gas near a broad Feshbach resonance does not have a universal
ground state due to the Thomas collapse, while it does near a narrow Feshbach resonance …

We show that an imaginary magnetic field (IMF), which can be generated in non-Hermitian
systems with spin-dependent dissipations, can greatly enhance the s-wave pairing and …

We briefly review some current theoretical and experimental aspects of the problem of a
single spinless impurity in a 3D polarised atomic Fermi gas at zero temperature where the …