M. Wehrheim

collaborators

3 papers

physics.atom-ph2025

Excited-state magnetic properties of carbon-like $Ca^{14 +}$

Lukas J. Spieß, Shuying Chen, Alexander Wilzewski +13

We measured the $g$ -factor of the excited state $^{3} P_{1}$ in $Ca^{14 +}$ ion to be $g = 1.499032 (6)$ with a relative uncertainty of $4 \times 1 0^{- 6}$ . The magnetic field…

physics.atom-ph2025

Finding the ultra-narrow $^{3} P_{2} \to^{3} P_{0}$ electric quadrupole transition in Ni $^{12 +}$ ion for an optical clock

Charles Cheung, Sergey G. Porsev, Dmytro Filin +7

The Ni $^{12 +}$ ion features an electronic transition with a natural width of only 8 mHz, allowing for a highly stable optical clock. We predict that the energy of this strongly for…

physics.atom-ph2024

Nonlinear calcium King plot constrains new bosons and nuclear properties

A. Wilzewski, L. I. Huber, M. Door +39

Nonlinearities in King plots (KP) of isotope shifts (IS) can reveal the existence of beyond-Standard-Model (BSM) interactions that couple electrons and neutrons. However, it is cru…

Excited-state magnetic properties of carbon-like Ca14+

Finding the ultra-narrow 3P2​→3P0​ electric quadrupole transition in Ni12+ ion for an optical clock

Nonlinear calcium King plot constrains new bosons and nuclear properties

Excited-state magnetic properties of carbon-like $Ca^{14 +}$

Finding the ultra-narrow $^{3} P_{2} \to^{3} P_{0}$ electric quadrupole transition in Ni $^{12 +}$ ion for an optical clock