We investigate cold bosonic impurity atoms trapped in a vortex lattice formed by condensed
bosons of another species. We describe the dynamics of the impurities by a bosonic …

We investigate the quantum phases of ultracold atoms trapped in a vortex lattice using a
mixture of two bosonic species (A and B), in the presence of an artificial gauge field. Heavy …

Both mixtures of atomic Bose-Einstein condensates and systems with atoms trapped in
optical lattices have been intensely explored theoretically, mainly due to the exceptional …

We consider the problem of finding the bound-state spectrum of an impurity immersed in a
weakly interacting two-dimensional Bose-Einstein condensate supporting a single vortex …

The formation of bound states between mobile impurity particles and fermionic atoms has
been demonstrated in spin-polarized Fermi gases with attractive interspecies interaction. We …

Mobile impurities in cold atomic gases constitute a new platform for investigating polaron
physics. Here we show that when impurity atoms interact with a two-dimensional Fermi gas …

We investigate the properties of a neutral impurity atom coupled with the Tkachenko modes
of a two-dimensional vortex lattice in a Bose-Einstein condensate. In contrast with polarons …

Nesta tese realizamos uma investigação teórica do efeito de impurezas em sistemas de
muitos corpos. Na primeira parte deste trabalho estudamos o comportamento de uma …

Neste trabalho estudamos um sistema bidimensional composto de duas espécies atômicas
condensadas, uma delas contendo uma rede de vórtices. Analogamente ao modelo …

CARACANHAS, MA Vortices and impurities in atomic superfluids: self-similar expansion and
Tkachenko polaron. 2014. 121 p. Thesis (Doctorate in Science)-Instituto de Física de São …