论文标题
冷$ \ Mathrm {raoh}^+$和$ {\ Mathrm {raoch} _3} _3}^+$的光谱质谱法
Optical Mass Spectrometry of Cold $\mathrm{RaOH}^+$ and ${\mathrm{RaOCH}_3}^+$
论文作者
论文摘要
我们提出了一种全光谱技术来识别被困的离子。该新方法使用激光冷却离子来确定几秒钟内具有子dalton分辨率的可扣黑离子的质量。我们应用方法来识别冷，被困的$ \ mathrm {raoh}^+$和$ {\ mathrm {raoch} _3}^+$的第一个控制的合成。这些分子对时间和平等违规行为的敏感性很有希望，这可能会限制超出标准模型的新物理学来源。质谱技术的无损性可能有助于鉴定分子离子或高电荷离子在光谱之前。与以前依赖扫描的小离子晶体的质谱技术不同，该方法使用了一种傅立叶变换，该变换本质上是宽带且相对较快的。该技术的速度为研究离子陷阱中的国家分辨化学反应提供了新的机会。
We present an all-optical mass spectrometry technique to identify trapped ions. The new method uses laser-cooled ions to determine the mass of a cotrapped dark ion with a sub-dalton resolution within a few seconds. We apply the method to identify the first controlled synthesis of cold, trapped $\mathrm{RaOH}^+$ and ${\mathrm{RaOCH}_3}^+$. These molecules are promising for their sensitivity to time and parity violations that could constrain sources of new physics beyond the standard model. The nondestructive nature of the mass spectrometry technique may help identify molecular ions or highly charged ions prior to optical spectroscopy. Unlike previous mass spectrometry techniques for small ion crystals that rely on scanning, the method uses a Fourier transform which is inherently broadband and comparatively fast. The technique's speed provides new opportunities for studying state-resolved chemical reactions in ion traps.
