activity
20182025
most citedResolving the gravitational redshift within a millimeter atomic sample

439 citations · 846 across the 10 of their papers we have counts for

collaborators

10 papers

physics.atom-ph2025

Atomic clock frequency ratios with fractional uncertainty

Alexander Aeppli, Willa J. Arthur-Dworschack, Kyle Beloy +24

We report high-precision frequency ratio measurements between optical atomic clocks based on Al, Yb, and Sr. With total fractional uncertainties at or bel…

physics.optics2025

Frequency stability of in a Si cavity with AlGaAs crystalline mirrors

Dahyeon Lee, Zoey Z. Hu, Ben Lewis +8

Developments in ultrastable lasers have fueled remarkable advances in optical frequency metrology and quantum science. A key ingredient in further improving laser frequency stabili…

physics.atom-ph2025

Atomic Coherence of 2 minutes and Instability of 1.5E-18 at 1 s in a Wannier-Stark Lattice Clock

Kyungtae Kim, Alexander Aeppli, William Warfield +3

We explore the limits of atomic coherence and measurement precision in a 87Sr optical lattice clock. We perform a detailed characterization of key effects, including lattice Raman…

physics.atom-ph2025★ 54 cited

High-Stability Single-Ion Clock with Systematic Uncertainty

Mason C. Marshall, Daniel A. Rodriguez Castillo, Willa J. Arthur-Dworschack +10

We report a single-ion optical atomic clock with fractional frequency uncertainty of and fractional frequency stability of $3.5 \times10^{-16}/\sqrt{τ/\mathrm{s…

physics.atom-ph2024★ 206 cited

A clock with systematic uncertainty

Alexander Aeppli, Kyungtae Kim, William Warfield +2

We report an optical lattice clock with a total systematic uncertainty of in fractional frequency units, representing the lowest uncertainty of any clock to d…

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.chem-ph2020★ 7 cited

Beyond the Limits of Conventional Stark Deceleration

David Reens, Hao Wu, Alexander Aeppli +4

Stark deceleration enables the production of cold and dense molecular beams with applications in trapping, collisional studies, and precision measurement. Improving the efficiency…

quant-ph2018★ 25 cited

-limited sensing of static magnetic fields via fast rotation of quantum spins

A. A. Wood, A. G. Aeppli, E. Lilette +5

Diamond-based quantum magnetometers are more sensitive to oscillating (AC) magnetic fields than static (DC) fields because the crystal impurity-induced ensemble dephasing time $T_2…