Publication Date:
2018-12-05
Description:
Author(s): Mehdi Langlois, Luigi De Sarlo, David Holleville, Noël Dimarcq, Jean-François Schaff, and Simon Bernon Improving global navigation satellite systems (GNSS) requires a more stable basis of timekeeping. Cold-atom clocks are currently the most accurate time references, but are large. This article presents an atomic clock, “Rubiclock”, that is compact and portable, thanks to a fiber-based laser bench, isotropic light cooling, and atoms that remain motionless during the operating sequence. This configuration gives the clock an important benefit in microgravity; measurements performed on 0- g flights show better stability than on the ground. The stability that Rubiclock could achieve in a satellite makes it a good candidate for the next generation of GNSS. [Phys. Rev. Applied 10, 064007] Published Tue Dec 04, 2018
Electronic ISSN:
2331-7019
Topics:
Physics