Single-particle spectroscopies of p-wave and d-wave interacting Bose gases in normal phase  

作　　者：Zeqing Wang Ran Qi 

机构地区：[1]Department of Physics,Renmin University of China,Beijing 100872,China

出　　处：《Communications in Theoretical Physics》2024年第5期140-147,共8页理论物理通讯（英文版）

基　　金：supported by the National Key Research and Development Program of China (Grant Nos. 2022YFA1405301 and 2018YFA0306502);the National Natural Science Foundation of China (Grant Nos. 12 022 405 and 11 774 426);the Beijing Natural Science Foundation (Grant No. Z180013)

摘　　要：Motivated by experiments with interacting quantum gases across high partial wave resonance,we investigate the thermodynamic properties and single-particle spectra of Bose gases in normal phase for different interaction strengths for both p-and d-wave interactions.The equation of state,contact density,momentum distributions and self-energies of single-particle Green’s functions are obtained in the spirit of ladder diagram approximations.The radio-frequency(RF)spectrum,as an important experimental approach for detecting Feshbach molecules or the interaction effect,is calculated at different temperatures.A reversed temperature dependence on the Bose–Einstein condensation side and Bardeen–Cooper–Schrieffer side is identified for both p-and d-wave interactions.An estimate for the signal of RF spectra under typical experimental conditions is also provided.

关 键 词：quantum gases ultracold atom high partial wave RF spectra 

分 类 号：O469[理学—凝聚态物理]