Seconds-scale coherence on an optical clock transition in a tweezer array
Abstract
Arrays of optical tweezers can be used to trap atoms, which can then be manipulated individually. Such arrays have shown promise in quantum simulation of many-body systems. Norcia et al. now demonstrate that they can also be used as a platform for optical clocks. The researchers lined up 10 optical tweezers in a one-dimensional array, where each tweezer held either one or zero atoms of strontium. The atoms were subjected to laser light whose frequency was tuned to a clock transition in strontium. By monitoring the number of atoms in each tweezer, the researchers measured a long coherence time of a few seconds. Increasing the number of tweezers should improve the figures of merit of this platform.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 04, 2019
- Source ID
- 10.1126/science.aay0644
Entities
People
- Aaron W Young
- Adam M. Kaufman
- Eric Oelker
- Jun Ye
- Matthew A Norcia
- William J Eckner
Organizations
- Air Force Office of Scientific Research
- Army Research Office
- National Institute of Standards and Technology
- National Science Foundation
- University of Colorado