Accession Number:

ADA623568

Title:

An Atomic Clock with 10 (exp -18) Instability

Descriptive Note:

Journal article

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE

Report Date:

2013-09-13

Pagination or Media Count:

7.0

Abstract:

Atomic clocks have been instrumental in science and technology, leading to innovations such as global positioning, advanced communications, and tests of fundamental constant variation. Timekeeping precision at 1 part in 10 exp 18 enables new timing applications in relativistic geodesy, enhanced Earth- and space-based navigation and telescopy, and new tests of physics beyond the standard model. Here, we describe the development and operation of two optical lattice clocks, both using spin-polarized, ultracold atomic ytterbium. A measurement comparing these systems demonstrates an unprecedented atomic clock instability of 1.6 x exp -18 after only 7 hours of averaging.

Subject Categories:

  • Electrical and Electronic Equipment
  • Test Facilities, Equipment and Methods
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE