Laser-cooled Be+ for improved antihydrogen trapping and magnetometry.

我们将在适合反氢形成和捕获的潘宁陷阱中激光冷却Be+离子。激光冷却的Be+将用于两个不同的目的，以帮助研究反氢。该项目的第一部分将专注于利用冷Be+对正电子进行交感冷却，从而产生更冷的反氢。这将允许增加反氢生产和生产更冷的反氢。这也应该允许使用比到目前为止可能的更多的正电子。有了这一帮助，我们有望更多地了解形成过程，并最终将反氢到磁捕获器中的捕获率提高至少一个数量级，这将大大加快精确测量的速度，从而提高精度。此外，冷Be+将被用于我们的反氢陷阱中的磁场的现场磁测量。特别是对于反物质重力测量来说，这一点非常重要，但随着光谱测量精度的提高，磁场的知识最终将限制精度。目前没有解决的一个特殊问题是测量低磁场，而目前应用的技术在这一点上失败了。

We will laser-cool Be+ ions in a Penning trap adapted for antihydrogen formation and trapping. The laser-cooled Be+ will be used for two separate purposes to assist in the studies of antihydrogen. The first part of the project will focus on using the cold Be+ to sympathetically cool positrons, and thereby produce colder antihydrogen. This will allow increased antihydrogen production and the production of colder antihydrogen. This should also allow for the use of more positrons than were hitherto possible. With this assistance we expect to learn more about the formation process and ultimately increase the trapping rates of antihydrogen into a magnetic trap by at least an order of magnitude, something that will greatly accelerate precision measurements allowing for increased precision. Additionally cold Be+ will be used for in-situe magnetometry of the magnetic fields in our antihydrogen traps. Particularly for antimatter gravity measurements this is of great importance, but as the precision on the spectroscopy measurements increase knowledge of the magnetic field will ultimately limit the precision. A particular problem currently not addressed is measuring low magnetic fields, where the currently applied technique fails.