Atoms and molecules in the search for time-reversal symmetry violation

Author
Abstract
New fundamental particles at the mass scale of a few TeVc<sup>-2</sup> could account for observed phenomena that cannot be explained by the standard model (SM) of particle physics, including the microscopic origin of dark matter and the macroscopic imbalance of matter over antimatter in the Universe. However, no beyond-the-SM (BSM) particles at the TeV scale have yet been detected at the Large Hadron Collider (LHC). With recent innovations, searches for time-reversal symmetry (T) violation through low-energy precision measurements of electric dipole moments (EDMs) of atoms and molecules have attained the sensitivity to detect indirect signatures of certain particles with masses of more than 10 TeVc<sup>-2</sup>. In this Perspective, we discuss recent developments in the measurement and interpretation of EDMs, and assess proposed techniques for future experiments that could push experimental limits on T-violating BSM physics to the PeV scale
Year of Publication
2019
Journal
Nature Reviews Physics
Volume
1
Number of Pages
510-521
Date Published
2019-07
URL
https://www.nature.com/articles/s42254-019-0080-0$\#$Abs1
DOI
10.1038/s42254-019-0080-0
JILA PI
Journal Article