$^6$ Li p波分子的辐射光谱：p波超流体的光电子能谱
Radiofrequency spectroscopy of $^6$Li p-wave molecules: towards photoemission spectroscopy of a p-wave superfluid
摘要：
用高阶分波来理解超流性对于理解高$T_c$超导性是至关重要的。为了实现具有各向异性序参量的超流体，具有强p波相互作用的自旋极化费米子锂原子是迄今为止最有希望的候选者。我们应用射频光谱技术，不遭受严重的最终状态的影响\cite{Perali08}的目标进行光电子能谱上的强烈相互作用的p波费米气体类似于最近申请的s波相互作用\cite{Stewart08}。本文给出了准束缚p波分子和自由原子在159.15“，G \cite{Schunck05}处p波费什巴赫共振附近的辐射谱。所观察到的相对调谐的分子和原子的信号在光谱与磁场确认早期的测量实现了直接射频关联\cite{Fuchs08}。此外，绑定分子生产使用绝热斜坡的证据。提出了一种利用一维光晶格观测各向异性超流隙的方案。
英文摘要：
Understanding superfluidity with higher order partial waves is crucial for the understanding of high-$T_c$ superconductivity. For the realization of a superfluid with anisotropic order parameter, spin-polarized fermionic lithium atoms with strong p-wave interaction are the most promising candidates to date. We apply rf-spectroscopy techniques that do not suffer from severe final-state effects \cite{Perali08} with the goal to perform photoemission spectroscopy on a strongly interacting p-wave Fermi gas similar to that recently applied for s-wave interactions \cite{Stewart08}. Radiofrequency spectra of both quasibound p-wave molecules and free atoms in the vicinity of the p-wave Feshbach resonance located at 159.15\,G \cite{Schunck05} are presented. The observed relative tunings of the molecular and atomic signals in the spectra with magnetic field confirm earlier measurements realized with direct rf-association \cite{Fuchs08}. Furthermore, evidence of bound molecule production using adiabatic ramps is shown. A scheme to observe anisotropic superfluid gaps, the most direct proof of p-wave superfluidity, with 1d-optical lattices is proposed.
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