activity
20152022
most citedOptical clock intercomparison with precision in one hour

474 citations · 2.3k across the 13 of their papers we have counts for

collaborators

13 papers

physics.atom-ph2022★ 62 cited

Evaluation of lattice light shift at low 10 uncertainty for a shallow lattice Sr optical clock

Kyungtae Kim, Alexander Aeppli, Tobias Bothwell +1

A Wannier-Stark optical lattice clock has demonstrated unprecedented measurement precision for optical atomic clocks. We present a systematic evaluation of the lattice light shift,…

physics.atom-ph2022★ 53 cited

Hamiltonian engineering of spin-orbit coupled fermions in a Wannier-Stark optical lattice clock

Alexander Aeppli, Anjun Chu, Tobias Bothwell +5

Engineering a Hamiltonian system with tunable interactions provides opportunities to optimize performance for quantum sensing and explore emerging phenomena of many-body systems. A…

physics.atom-ph2021★ 439 cited

Resolving the gravitational redshift within a millimeter atomic sample

Tobias Bothwell, Colin J. Kennedy, Alexander Aeppli +5

Einstein's theory of general relativity states that clocks at different gravitational potentials tick at different rates - an effect known as the gravitational redshift. As fundame…

physics.atom-ph2020★ 225 cited

Precision Metrology Meets Cosmology: Improved Constraints on Ultralight Dark Matter from Atom-Cavity Frequency Comparisons

Colin J. Kennedy, Eric Oelker, John M. Robinson +6

We conduct frequency comparisons between a state-of-the-art strontium optical lattice clock, a cryogenic crystalline silicon cavity, and a hydrogen maser to set new bounds on the c…

physics.optics2020★ 28 cited

Optical Atomic Clock Comparison through Turbulent Air

Martha I. Bodine, Jean-Daniel Deschênes, Isaac H. Khader +32

We use frequency comb-based optical two-way time-frequency transfer (O-TWTFT) to measure the optical frequency ratio of state-of-the-art ytterbium and strontium optical atomic cloc…

physics.atom-ph2020★ 14 cited

Frequency Ratio Measurements with 18-digit Accuracy Using a Network of Optical Clocks

Boulder Atomic Clock Optical Network, Collaboration, : +35

Atomic clocks occupy a unique position in measurement science, exhibiting higher accuracy than any other measurement standard and underpinning six out of seven base units in the SI…