Polaron in almost ideal molecular Bose-Einstein condensate
Quantum Gases
2021-11-16 v1
Abstract
We discuss properties of a single impurity atom immersed in the spin- dilute Fermi gas with equal populations of two species in the deep Bose-Einstein condensate (BEC) phase. In this limit, when an almost undepleted BEC of the tightly bound molecules of spin-up and spin-down fermions is formed, we calculate the parameters of an impurity spectrum. It is justified that the leading-order contribution to the impurity energy, while being determined by the two- and three-body scattering processes, is dominated by the former ones.
Cite
@article{arxiv.2111.07095,
title = {Polaron in almost ideal molecular Bose-Einstein condensate},
author = {O. Hryhorchak and V. Pastukhov},
journal= {arXiv preprint arXiv:2111.07095},
year = {2021}
}
Comments
6 pages, 7 figures; comments welcome