On the ground state of an impurity in a dilute fermi gas

R. F. Bishop

R. F. Bishop

G. Panochko, V. Pastukhov

We present a comprehensive discussion of the ground-state properties of dilute D-dimensional Bose gas interacting with a few static impurities. Assuming the short-ranged character of the boson-impurity interaction, we calculated the energy of three- and two-dimensional Bose systems with one and two impurities immersed.

Fernando Cucchietti, Eddy Timmermans

A neutral impurity atom immersed in a dilute Bose-Einstein condensate (BEC) can have a bound ground state in which the impurity is self-localized. In this polaronlike state, the impurity distorts the density of the surrounding BEC, thereby creating the self-trapping potential minimum. We describe the self-localization in a strong-coupling approach.

Jesper Levinsen, Meera M. Parish

E.L. Hazlett