4.5 Article

Measuring the stability of fundamental constants with a network of clocks

期刊

EPJ QUANTUM TECHNOLOGY
卷 9, 期 1, 页码 -

出版社

SPRINGER
DOI: 10.1140/epjqt/s40507-022-00130-5

关键词

Variations of fundamental constants; Atomic and molecular clocks; Networks of quantum sensors; Dark matter; Dark energy; Solitons; Quantum gravity; Grand unification theories; Violation of fundamental symmetries; Physics beyond the Standard Model

资金

  1. STFC
  2. EPSRC [ST/T00598X/1, ST/T006048/1, ST/T006234/1, ST/T00603X/1, ST/T00102X/1, ST/S002227/1]
  3. UK government department for Business, Energy and Industrial Strategy through the UK National Quantum Technologies Programme
  4. US NSF [PHY-2012068]
  5. World Premier International Research Center Initiative (WPI), MEXT, Japan
  6. JSPS KAKENHI [JP20K14460]
  7. Royal Society
  8. Wolfson Foundation

向作者/读者索取更多资源

This article discusses how a network of atomic and molecular clocks can be used to detect variations in fundamental constants, with a focus on the QSNET project. The authors describe the goals and expected performance of QSNET, and highlight its potential to discover new physics and shed light on the nature of dark matter and dark energy.
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.

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