High-precision spectroscopy of hydrogen molecular ions*
Zhong Zhen-Xianga), Tong Xina), Yan Zong-Chaoa),b),c)†, Shi Ting-Yuna),b)‡
       
Molecular dynamics simulation of a fluorescence image of an Mg+/HD+ bi-component Coulomb crystal. The spatial distribution of the non-fluorescing molecular HD+ ions has been made visible in blue in the simulated image.