activity
20192025
most citedSearch for a Variation of the Fine Structure around the Supermassive Black Hole in Our Galactic Center

56 citations · 182 across the 8 of their papers we have counts for

collaborators

7 papers

physics.atom-ph2025★ 4 cited

Theoretical characterisation of the barium II and radium II ions

Robin B. Cserveny, Benjamin M. Roberts

Motivated by recent experimental advances, including the ongoing development of an optical atomic clock in singly ionised radium, we perform a detailed theoretical characterisation…

physics.atom-ph2024★ 1 cited

The hyperfine anomaly in mercury and test of the Moskowitz-Lombardi rule

J. Vandeleur, G. Sanamyan, B. M. Roberts +1

The Moskowitz-Lombardi rule gives a simple relation between the magnetic moment of an atomic nucleus and the effect of its radial distribution on the hyperfine structure - the magn…

physics.atom-ph2024★ 1 cited

Vacuum polarization corrections to hyperfine structure in many-electron atoms

J. C. Hasted, C. J. Fairhall, O. R. Smits +2

We perform a theoretical study of vacuum polarization corrections to the hyperfine structure in many-electron atoms. Calculations are performed for systems of interest for precisio…

hep-ph2023★ 22 cited

Ultralight Dark Matter Search with Space-Time Separated Atomic Clocks and Cavities

Melina Filzinger, Ashlee R. Caddell, Dhruv Jani +4

We devise and demonstrate a method to search for non-gravitational couplings of ultralight dark matter to standard model particles using space-time separated atomic clocks and cavi…

physics.atom-ph2022★ 19 cited

Empirical determination of the Bohr-Weisskopf effect in cesium and improved tests of precision atomic theory in searches for new physics

G. Sanamyan, B. M. Roberts, J. S. M. Ginges

The finite distribution of the nuclear magnetic moment across the nucleus gives a contribution to the hyperfine structure known as the Bohr-Weisskopf (BW) effect. We have obtained…

astro-ph.GA2020★ 56 cited

Search for a Variation of the Fine Structure around the Supermassive Black Hole in Our Galactic Center

A. Hees, T. Do, B. M. Roberts +11

Searching for space-time variations of the constants of Nature is a promising way to search for new physics beyond General Relativity and the standard model motivated by unificatio…