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 …

This article reviews theoretical and experimental developments for one-dimensional Fermi
gases. Specifically, the experimentally realized two-component delta-function interacting …

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 …

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 review the current understanding of the uniform two-dimensional (2D) Fermi gas with
short-range interactions. We first outline the basics of two-body scattering in 2D, including a …

A light impurity in a Fermi sea undergoes a transition from a polaron to a molecule for
increasing interaction. We develop a method to compute the spectral functions of the …

Two-dimensional semiconductors provide an ideal platform for exploration of linear exciton
and polariton physics, primarily due to large exciton binding energy and strong light-matter …

Recent experimental breakthroughs in non-Hermitian ultracold atomic lattices have dangled
tantalizing prospects in realizing exotic, hitherto unreported, many-body non-Hermitian …

We analyze the properties of a single impurity immersed in a Fermi sea. At positive energy
and scattering lengths, we show that the system possesses a well-defined but metastable …

We investigate the highly polarized limit of a two-dimensional Fermi gas, where we
effectively have a single spin-down impurity atom immersed in a spin-up Fermi sea. By …