Atom interferometry using wave packets with constant spatial displacements

Atom interferometry using wave packets with constant spatial displacements. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. A standing-wave light-pulse sequence is demonstrated that places atoms into a superposition of wave packets with precisely controlled displacements that remain constant for times as long as 1 s. The separated wave packets are subsequently recombined, resulting in atom interference patterns that probe energy differences of ≈10 −34 J and can provide acceleration measurements that are insensitive to platform vibrations.