activity
20232025
most citedHigh-Stability Single-Ion Clock with Systematic Uncertainty

54 citations · 69 across the 6 of their papers we have counts for

collaborators

6 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.atom-ph2025★ 2 cited

High-fidelity quantum state control of a polar molecular ion in a cryogenic environment

Dalton Chaffee, Baruch Margulis, April Sheffield +5

We use a quantum-logic spectroscopy (QLS) protocol to control the quantum state of a CaH+ ion in a cryogenic environment, in which reduced thermal radiation extends rotational stat…

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…

quant-ph2024

Molecular Quantum Control Algorithm Design by Reinforcement Learning

Anastasia Pipi, Xuecheng Tao, Arianna Wu +2

Precision measurements of molecules offer an unparalleled paradigm to probe physics beyond the Standard Model. The rich internal structure within these molecules makes them exquisi…

physics.optics2024

Cryogenic sapphire optical reference cavity with crystalline coatings at fractional instability

Jose Valencia, George Iskander, Nicholas V. Nardelli +2

The frequency stability of a laser locked to an optical reference cavity is fundamentally limited by thermal noise in the cavity length. These fluctuations are linked to material d…

physics.atom-ph2023★ 13 cited

Quantum state tracking and control of a single molecular ion in a thermal environment

Yu Liu, Julian Schmidt, Zhimin Liu +3

Understanding molecular state evolution is central to many disciplines, including molecular dynamics, precision measurement, and molecule-based quantum technology. Details of the e…