Abstract
We study the ground state and excitations of a one-dimensional trapped polarized Fermi gas interacting with a single impurity. First, we study the tunneling dynamics of the impurity through a potential barrier, such as one effectively created by a double-well trap. To this end, we perform an exact diagonalization of the full few-body Hamiltonian and analyze the results in a local-density approximation. Off-diagonal and one-particle correlation matrices are studied and are shown to be useful for discerning between different symmetries of the states. Second, we consider a radio-frequency spectroscopy of our system and the resulting spectral function. These calculations can motivate future experiments, which can provide further insight into the physics of a Fermi polaron.
Original language | English |
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Article number | 063603 |
Pages (from-to) | 1-9 |
Journal | Physical Review A |
Volume | 96 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Dec 2017 |
MoE publication type | A1 Journal article-refereed |