@article{
 title = {Correlated spin-flip tunneling in a Fermi lattice gas},
 type = {article},
 year = {2018},
 pages = {023623},
 volume = {98},
 websites = {https://link.aps.org/doi/10.1103/PhysRevA.98.023623},
 month = {8},
 publisher = {American Physical Society},
 day = {20},
 id = {7398438a-9e78-339e-9bde-85d42e9332ff},
 created = {2018-09-11T15:45:50.334Z},
 file_attached = {true},
 profile_id = {004c1ae0-7ed4-35f3-b39b-28665b4ab9a2},
 last_modified = {2021-05-18T18:59:21.505Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Xu2017a},
 private_publication = {false},
 abstract = {We report the realization of correlated, density-dependent tunneling for fermionic 40K atoms trapped in an optical lattice. By appropriately tuning the frequency difference between a pair of Raman beams applied to a spin-polarized gas, simultaneous spin transitions and tunneling events are induced that depend on the relative occupations of neighboring lattice sites. Correlated spin-flip tunneling is spectroscopically resolved using gases prepared in opposite spin states, and the inferred Hubbard interaction energy is compared with a tight-binding prediction. We show that the laser-induced correlated tunneling process generates doublons via loss induced by light-assisted collisions. Furthermore, by controllably introducing vacancies to a spin-polarized gas, we demonstrate that correlated tunneling is suppressed when neighboring lattice sites are unoccupied.},
 bibtype = {article},
 author = {Xu, Wenchao and Morong, William and Hui, Hoi-Yin and Scarola, Vito W. and DeMarco, Brian},
 doi = {10.1103/PhysRevA.98.023623},
 journal = {Physical Review A},
 number = {2}
}

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