QSNET, a network of clocks for measuring the stability of fundamental constants

Abstract

The QSNET consortium is building a UK network of next-generation atomic and molecular clocks that will achieve unprecedented sensitivity in testing variations of the fine structure constant, $\hat{I}\pm$, and the electron-to-proton mass ratio, $\hat{I}¼$. This in turn will provide more stringent constraints on a wide range of fundamental and phenomenological theories beyond the Standard Model and on dark matter models.