论文标题
单个H $ _2^+$的捕获和地面冷却
Trapping and Ground-State Cooling of a Single H$_2^+$
论文作者
论文摘要
我们演示了h $ _2^+$ - $^9 $ be $^+$ ion对的共同捕获和边带冷却。 We study the chemical lifetime of H$_2^+$ and its dependence on the apparatus temperature, achieving lifetimes of up to $11^{+6}_{-3}$ h at 10 K. We demonstrate cooling of two of the modes of translational motion to an average phonon number of 0.07(1) and 0.05(1), corresponding to a temperature of 22(1) $μ$K and 55(3)分别$ $ k。我们的结果为H $ _2^+$的量子逻辑光谱实验以及其他光离子（例如HD $^+$，H $ _3^+$）和He $^+$提供了基础。
We demonstrate co-trapping and sideband cooling of a H$_2^+$ - $^9$Be$^+$ ion pair in a cryogenic Paul trap. We study the chemical lifetime of H$_2^+$ and its dependence on the apparatus temperature, achieving lifetimes of up to $11^{+6}_{-3}$ h at 10 K. We demonstrate cooling of two of the modes of translational motion to an average phonon number of 0.07(1) and 0.05(1), corresponding to a temperature of 22(1) $μ$K and 55(3) $μ$K respectively. Our results provide a basis for quantum logic spectroscopy experiments of H$_2^+$, as well as other light ions such as HD$^+$, H$_3^+$, and He$^+$.
