arXiv:cond-mat/0203582

A dilute mixture of atoms and molecules

Sungkit Yip

Published Mar 28, 2002• 0 citations

Abstract

We study a dilute gas with two species of Fermionic atoms of unequal concentrations, interacting via a short-range interaction with one deeply bound state. We study the properties of this system under the mean-field approximation. We obtain the effective interaction among the fermions and bosons, and discuss the collective modes of the system.

DOI: 10.48550/arxiv.cond-mat/0203582

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arXiv:cond-mat/0203582

A dilute mixture of atoms and molecules

Sungkit Yip

Published Mar 28, 2002• 0 citations

arXiv HTML PDF

Abstract

DOI: 10.48550/arxiv.cond-mat/0203582

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s

-wave interaction between the different species by means of magnetically controlled Feshbach resonances, which allow us to investigate regimes of strong interactions. In two case studies, we review our experiments on mixtures of

^6

Li fermions with fermionic

^{40}

K or bosonic

^{41}

K atoms and on mixtures of fermionic

^{161}

Dy with

^{40}

K atoms. We cover various topics of fermionic quantum many-body physics, ranging from impurity physics and quasiparticles over phase separation to the formation of ultracold molecules and progress towards novel superfluids.