Zhenpu Zhang

1 month ago | link.aps.org | Ting-Wei Hsu |Daniel Slichter |Adam Kaufman |Zhenpu Zhang

We present an optical tweezer array of   atoms housed in an cryogenic environment that successfully combines a 4-K cryopumping surface, a <50-K cold box surrounding the atoms, and a room-temperature high-numerical-aperture objective lens. We demonstrate a 3000-s atom-trap lifetime, which enables us to optimize and measure losses at the level that arise during imaging and cooling, which are important to array rearrangement.