Broad Feshbach resonances in ultracold alkali-metal systems
Abstract
A comprehensive search for "broad" Feshbach resonances (FRs) in all possible combinations of stable alkali-metal atoms is carried out, using a multi-channel quantum-defect theory assisted by the analytic wave functions for a long-range van-der-Waals potential. A number of new "broad" -, - and -wave FRs in the lowest-energy scattering channels, which are stable against two-body dipolar spin-flip loss, are predicted and characterized. Our results also show that "broad" FRs of - or -wave type that are free of two-body loss do not exist between fermionic alkali-metal atoms for magnetic field up to 1000\,G. These findings constitute helpful guidance on efforts towards experimental study of high-partial-wave coupling induced many-body physics.
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Cite
@article{arxiv.1808.03917,
title = {Broad Feshbach resonances in ultracold alkali-metal systems},
author = {Yue Cui and Min Deng and Li You and Bo Gao and Meng Khoon Tey},
journal= {arXiv preprint arXiv:1808.03917},
year = {2018}
}
Comments
14 pages, 1 figure