Tunable Polarons in Bose-Einstein Condensates.

Abstract:

:A toolbox for the quantum simulation of polarons in ultracold atoms is presented. Motivated by the impressive experimental advances in the area of ultracold atomic mixtures, we theoretically study the problem of ultracold atomic impurities immersed in a Bose-Einstein condensate mixture (BEC). The coupling between impurity and BEC gives rise to the formation of polarons whose mutual interaction can be effectively tuned using an external laser driving a quasi-resonant Raman transition between the BEC components. Our scheme allows one to change the effective interactions between polarons in different sites from attractive to zero. This is achieved by simply changing the intensity and the frequency of the two lasers. Such arrangement opens new avenues for the study of strongly correlated condensed matter models in ultracold gases.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Compagno E,De Chiara G,Angelakis DG,Palma GM

doi

10.1038/s41598-017-02398-5

subject

Has Abstract

pub_date

2017-05-24 00:00:00

pages

2355

issue

1

issn

2045-2322

pii

10.1038/s41598-017-02398-5

journal_volume

7

pub_type

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