论文标题
D-Wave相互作用的玻体原子和分子的冷气中的超氟相位和激发
Superfluid phases and excitations in a cold gas of d-wave interacting bosonic atoms and molecules
论文作者
论文摘要
由于最近在轨道调谐的Feshbach共振实验中进展的动机，我们分析了D-Wave相互作用的玻色气体的地面相图和相关的低能激发光谱。采用具有D波对称性相互作用和背景S波相互作用的两通道模型来表征气体。发现基态显示出三个有趣的阶段：原子，分子和原子分子超流体。在当前的D波情况下，原子超流体与以前已知的不同，与以前已知的不同。在分析和数值上获得了每个超流相上方的Bogoliubov光谱。
Motivated by recent advance in orbitally tuned Feshbach resonance experiments, we analyze the ground-state phase diagram and related low-energy excitation spectra of a d-wave interacting Bose gas. A two-channel model with d-wave symmetric interactions and background s-wave interactions is adopted to characterize the gas. The ground state is found to show three interesting phases: atomic, molecular, and atomic-molecular superfluidity. Remarkably differently from what was previously known in the p-wave case, the atomic superfluid is found to be momentum-independent in the present d-wave case. Bogoliubov spectra above each superfluid phase are obtained both analytically and numerically.
