2021/11/13 by Orest Hryhorchak, V. Pastukhov, Hryhorchak, O. +1
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Physics of Superconductivity and Magnetism #Quantum Gases (cond-mat.quant-gas) #Strong Light-Matter Interactions
paper · pdf · doi:10.48550/arxiv.2111.07095
openalex publication_date 2021/11/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We discuss properties of a single impurity atom immersed in the spin-1/2 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.