论文标题
强烈相互作用的费米气体的棕褐色接触的照片兴趣测量
Photo-excitation measurement of Tan's contact for a strongly interacting Fermi gas
论文作者
论文摘要
从理论上讲，在光学转移的费米子对与更紧密结合的分子状态的情况下，理论上得出了TAN的通用接触与光震动速率之间的确切关系。我们的偏差概括了Tan的接触与Werner，Tarruell和Castin先前在Eur中发现的闭合通道分子分数之间的关系。物理。 J. B \ textbf {68}，401（2009）。我们使用该关系来了解最近相互作用的$^{6} $ li fermi as Gas {[[} liu \ textit {et al。}，arxiv：1903.12321 {]}中的近期低温照片兴奋测量测量，并显示理论和经验之间的合理协议与亲密的限制之间存在合理的协议。我们建议我们的关系可以应用于在未来实验中在有限温度下在有限温度下准确测量TAN的接触系数。
We derive theoretically an exact relation between Tan's universal contact and the photo-excitation rate of a strongly interacting Fermi gas, in the case of optically transferring fermionic pairs to a more tightly bound molecular state. Our deviation generalizes the relation between Tan's contact and the closed-channel molecular fraction found earlier by Werner, Tarruell and Castin in Eur. Phys. J. B \textbf{68}, 401 (2009). We use the relation to understand the recent low-temperature photo-excitation measurement in a strongly interacting $^{6}$Li Fermi gas {[}Liu \textit{et al.}, arXiv:1903.12321{]} and show that there is a reasonable agreement between theory and experiment close to the unitary limit. We propose that our relation can be applied to accurately measure Tan's contact coefficient at finite temperature in future experiments.
