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Measuring the stability of fundamental constants with a network of clocks

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Version 2 2023-06-07, 08:57
Version 1 2023-06-07, 07:55
journal contribution
posted on 2023-06-07, 08:57 authored by G Barontini, Laura BlackburnLaura Blackburn, V Boyer, F Butuc-Mayer, Xavier CalmetXavier Calmet, J R Crespo Lopez-Urrutia, E A Curtis, B Darquie, Jacob DunninghamJacob Dunningham, N J Fitch, E M Forgan, K Georgiou, Matthias KellerMatthias Keller, Folkert Johannes Kuipers, Nathan SherrillNathan Sherrill, others
The detection of variations of fundamental constants of the Standard Model would provide us with compelling evidence of new physics, and could lift the veil on the nature of dark matter and dark energy. In this work, we discuss how a network of atomic and molecular clocks can be used to look for such variations with unprecedented sensitivity over a wide range of time scales. This is precisely the goal of the recently launched QSNET project: A network of clocks for measuring the stability of fundamental constants. QSNET will include state-of-the-art atomic clocks, but will also develop next-generation molecular and highly charged ion clocks with enhanced sensitivity to variations of fundamental constants. We describe the technological and scientific aims of QSNET and evaluate its expected performance. We show that in the range of parameters probed by QSNET, either we will discover new physics, or we will impose new constraints on violations of fundamental symmetries and a range of theories beyond the Standard Model, including dark matter and dark energy models.

History

Publication status

  • Published

File Version

  • Published version

Journal

EPJ Quantum Technology

ISSN

2196-0763

Publisher

Springer

Issue

1

Volume

9

Page range

1-52

Article number

a12

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2022-05-16

First Open Access (FOA) Date

2022-05-16

First Compliant Deposit (FCD) Date

2022-05-13

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