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论文期刊

论文标题    Long-Range Molecular Resonances in a Cold Rydberg Gas
作者    Farooqi, Tong, Krishnan, Stanojevic, Zhang etal.
发表/完成日期    2003-10-31
期刊名称    Physics Review Letter
期卷    91(18)
相关文章    Ryd_mol_res.pdf   
论文简介    We present evidence for molecular resonances in a cold dense gas of rubidium Rydberg atoms. Single UV photon excitation from the 5s ground state to np Rydberg states (n= 50–90) reveals resonances at energies corresponding to excited atom pairs (n-1)d+ns. We attribute these normally forbidden transitions to avoided crossings between the long-range molecular potentials of two Rydberg atoms. These strong van der Waals interactions result in avoided crossings at extremely long range, e.g., ~58 000 times the Bohr radius (a0) for n=70.
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