Broad Feshbach resonances in ultracold alkali-metal systems
Broad Feshbach resonances in ultracold alkali-metal systems
复制标题
超冷碱金属系统中的广泛费什巴赫共振
DOI：
10.1103/physreva.98.042708
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发表时间：
2018-10-24
影响因子：
2.9
通讯作者：
Tey, Meng Khoon
中科院分区：
文献类型：
--
作者：
Cui, Yue;Deng, Min;Tey, Meng Khoon
一个全面的搜索“宽”Feshbach共振（FR）在所有可能的组合稳定的碱金属原子进行，使用多通道量子亏损理论辅助的分析波函数的远程范德华势。一些新的“宽”$s$-，$p$-和$d$-波FR在最低能量的散射通道，这是稳定的对两体偶极自旋翻转损失，预测和特征。我们的结果还表明，对于高达1000\，G的磁场，费米子碱金属原子之间不存在无二体损失的$p$-或$d$-波类型的“宽”FR。这些发现对高分波耦合诱导多体物理的实验研究具有指导意义。
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" $s$-, $p$- and $d$-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 $p$- or $d$-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.