Our Group is developing high stability, high accuracy optical atomic clocks based on thousands of Yb atoms confined to an optical lattice. Such clocks will find applications in tests of fundamental physics and ultra-precise timekeeping, and might one day contribute to a new definition of the second.
- Developed and demonstrated the first lattice clock based on Yb
- Achieved 3 x 10-16 absolute uncertainty with a spin-1/2 lattice clock
- The NIST Yb lattice clock advanced atomic clock stability to a level ~ 10-18.
- Measurement of the dc polarizability of the clock transition with 20 ppm uncertainty
Additional Technical Details
NRC Postdoc Program
Apply for an NRC postdoc in optical atomic clock or fs-laser frequency comb research. Application deadlines are February 1 and August 1 annually (but inquire well in advance).
Summer Undergraduate Research Fellowship (SURF)
Summer program at NIST-Boulder for undergraduates in science, engineering, and mathematics. The application deadline is February 15 annually.
Postdoctoral, Visiting Scientist, and Graduate Positions
Our Group has periodic openings for Postdoctoral Fellows, Visiting Scientists, and Graduate Students. Please contact us for more information.