TY - JOUR
T1 - Polarons in extremely polarized Fermi gases: The strongly interacting 6Li-40K mixture
AU - Baarsma, J E
AU - Armaitis, J.
AU - Duine, R.A.
AU - Stoof, H.T.C.
PY - 2012/3/23
Y1 - 2012/3/23
N2 - We study the extremely polarized two-component Fermi gas with a mass imbalance in the strongly interacting regime. Specifically we focus on the experimentally available mixture of ${}^6$Li and ${}^{40}$K atoms. In this regime spin polarons, i.e., dressed minority atoms, form. We consider the spectral function for the minority atoms, from which the lifetime and the effective mass of the spin polaron can be determined. Moreover, we predict the radio-frequency (RF) spectrum and the momentum distribution for the spin polarons for experiments with 6Li and 40K atoms. Subsequently we study the relaxation of the motion of the spin polaron due to spin drag
AB - We study the extremely polarized two-component Fermi gas with a mass imbalance in the strongly interacting regime. Specifically we focus on the experimentally available mixture of ${}^6$Li and ${}^{40}$K atoms. In this regime spin polarons, i.e., dressed minority atoms, form. We consider the spectral function for the minority atoms, from which the lifetime and the effective mass of the spin polaron can be determined. Moreover, we predict the radio-frequency (RF) spectrum and the momentum distribution for the spin polarons for experiments with 6Li and 40K atoms. Subsequently we study the relaxation of the motion of the spin polaron due to spin drag
U2 - 10.1103/PhysRevA.85.033631
DO - 10.1103/PhysRevA.85.033631
M3 - Article
SN - 1050-2947
VL - 85
SP - 1
EP - 5
JO - Physical review. A, Atomic, molecular and optical physics
JF - Physical review. A, Atomic, molecular and optical physics
M1 - 033631
ER -