We study the properties of the Bose polaron, an impurity strongly interacting with a Bose-
Einstein condensate, using a field-theoretic approach and make predictions for the spectral …

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 …

We develop a microscopic theory describing a quantum impurity whose rotational degree of
freedom is coupled to a many-particle bath. We approach the problem by introducing the …

The exchange of collective modes has been demonstrated to be a powerful tool for inducing
superconductivity and superfluidity in various condensed matter and atomic systems. In this …

We investigate the zero-temperature properties of a superfluid Bose-Fermi mixture by
introducing a set of coupled Galilei-invariant nonlinear Schrödinger equations valid from …

We consider a system of repulsively interacting Bose-Fermi mixtures of spin-polarized
uniform atomic gases at zero temperature. We examine possible realization of p-wave …

Interactions between quasiparticles mediated by a surrounding environment are ubiquitous
and lead to a range of important effects from collective modes of low-temperature quantum …

We investigate a dilute mixture of bosons and spin-polarized fermions in one dimension.
With an attractive Bose-Fermi scattering length the ground state is a self-bound droplet, ie, a …

We study the transition to fermion pair superfluidity in a mixture of interacting bosonic and
fermionic atoms. The fermion interaction induced by the bosons and the dynamical …

Recent years have seen spectacular progress towards the realization of novel strongly
correlated systems with homonuclear ultracold quantum gases. The strongly correlated …