133 citations · 299 across the 14 of their papers we have counts for
15 papers
Interspecies clock comparison below uncertainty with a transportable clock
Chetan Vishwakarma, Ingo Nosske, Tim Lücke +6
We report a measurement of the optical frequency ratio between the -- electric-octupole (E3) transition of Yb and…
International Optical Clock Comparison Using the European Optical Fiber Network
Marco Pizzocaro, Clara Zyskind, Anne Amy-Klein +41
Optical clocks have achieved remarkable estimated fractional frequency uncertainties reaching the level and below, enabling applications in fundamental physics, general…
A multi-ion optical clock with uncertainty
Melina Filzinger, Martin R. Steinel, Jian Jiang +4
Today's most accurate clocks are based on laser spectroscopy of electronic transitions in single trapped ions and feature fractional frequency uncertainties below …
High-Resolution Spectroscopy of Yb Ions
J. Jiang, A. V. Viatkina, Saaswath JK +7
Compared to other stable isotopes of , has a richer hyperfine structure, which leads to more favorable clock transitions, spectroscopic techniques for…
Coordinated international comparisons between optical clocks connected via fiber and satellite links
Thomas Lindvall, Marco Pizzocaro, Rachel M. Godun +62
Optical clocks provide ultra-precise frequency references that are vital for international metrology as well as for tests of fundamental physics. To investigate the level of agreem…
Excited-state magnetic properties of carbon-like
Lukas J. Spieß, Shuying Chen, Alexander Wilzewski +13
We measured the -factor of the excited state in ion to be with a relative uncertainty of . The magnetic field…
High-accuracy multi-ion spectroscopy with mixed-species Coulomb crystals
J. Keller, H. N. Hausser, I. M. Richter +14
Multi-ion optical clocks offer the possibility of overcoming the low signal-to-noise ratio of single-ion clocks, while still providing low systematic uncertainties. We present simu…
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…
Probing new bosons and nuclear structure with ytterbium isotope shifts
Menno Door, Chih-Han Yeh, Matthias Heinz +24
In this Letter, we present mass-ratio measurements on highly charged Yb ions with a precision of and isotope-shift measurements on Yb on the …
In-Yb Coulomb crystal clock with systematic uncertainty
H. N. Hausser, J. Keller, T. Nordmann +17
We present a scalable mixed-species Coulomb crystal clock based on the transition in In. Yb ions are co-trapped and used f…
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…
Improved limits on the coupling of ultralight bosonic dark matter to photons from optical atomic clock comparisons
M. Filzinger, S. Dörscher, R. Lange +6
We present improved constraints on the coupling of ultralight bosonic dark matter to photons based on long-term measurements of two optical frequency ratios. In these optical clock…
Oscillating nuclear charge radii as sensors for ultralight dark matter
Abhishek Banerjee, Dmitry Budker, Melina Filzinger +5
We show that coupling of ultralight dark matter (UDM) to quarks and gluons would lead to an oscillation of the nuclear charge radius for both the quantum chromodynamics (QCD) axion…
Evaluation of a Sr optical clock with a direct measurement of the blackbody radiation shift and determination of the clock frequency
M. Steinel, H. Shao, M. Filzinger +7
We report on an evaluation of an optical clock that uses the transition of a single Sr ion as the reference. In con…
Rapid production of defect-free beryllium ion Coulomb crystals
Qiming Wu, Melina Filzinger, Yue Shi +2
Trapped atomic ions find wide applications ranging from precision measurement to quantum information science and quantum computing. Among the different atomic species employed, ber…