584 citations · 2k across the 14 of their papers we have counts for
15 papers
Realizing spin squeezing with Rydberg interactions in a programmable optical clock
William J. Eckner, Nelson Darkwah Oppong, Alec Cao +5
Neutral-atom arrays trapped in optical potentials are a powerful platform for studying quantum physics, combining precise single-particle control and detection with a range of tuna…
Direct comparison of two spin squeezed optical clocks below the quantum projection noise limit
John M Robinson, Maya Miklos, Yee Ming Tso +5
Building scalable quantum systems that demonstrate genuine performance enhancement based on entanglement is a major scientific goal for fields including computing, networking, simu…
Frequency stability of cryogenic silicon cavities with semiconductor crystalline coatings
Dhruv Kedar, Jialiang Yu, Eric Oelker +7
State-of-the-art optical oscillators employing cryogenic reference cavities are limited in performance by the Brownian thermal noise associated with the mechanical dissipation of t…
Excess noise and photo-induced effects in highly reflective crystalline mirror coatings
Jialiang Yu, Dhruv Kedar, Sebastian Häfner +9
Thermodynamically induced length fluctuations of high-reflectivity mirror coatings put a fundamental limit on sensitivity and stability of precision optical interferometers like gr…
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…
Thermal noise and mechanical loss of SiO/TaO optical coatings at cryogenic temperatures
John M Robinson, Eric Oelker, William R Milner +8
Mechanical loss of dielectric mirror coatings sets fundamental limits for both gravitational wave detectors and cavity-stabilized optical local oscillators for atomic clocks. Two a…
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…
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…
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…
Demonstration of a time scale based on a stable optical carrier
William R. Milner, John M. Robinson, Colin J. Kennedy +13
We demonstrate a time scale based on a phase stable optical carrier that accumulates an estimated time error of ps over 34 days of operation. This all-optical time scale…
JILA SrI Optical Lattice Clock with Uncertainty of
Tobias Bothwell, Dhruv Kedar, Eric Oelker +5
We report on an improved systematic evaluation of the JILA SrI optical lattice clock, achieving a nearly identical systematic uncertainty compared to the previous strontium accurac…
Crystalline optical cavity at 4 K with thermal noise limited instability and ultralow drift
John M. Robinson, Eric Oelker, William R. Milner +6
Crystalline optical cavities are the foundation of today's state-of-the-art ultrastable lasers. Building on our previous silicon cavity effort, we now achieve the fundamental therm…
Frequency measurements of superradiance from the strontium clock transition
Matthew A. Norcia, Julia R. K. Cline, Juan A. Muniz +6
We present the first characterization of the spectral properties of superradiant light emitted from the ultra-narrow, 1 mHz linewidth optical clock transition in an ensemble of col…
1.5 m lasers with sub 10 mHz linewidth
D. G. Matei, T. Legero, S. Häfner +8
We report on two ultrastable lasers each stabilized to independent silicon Fabry-Pérot cavities operated at 124 K. The fractional frequency instability of each laser is completely…
High-performance near- and mid-infrared crystalline coatings
Garrett D. Cole, Wei Zhang, Bryce J. Bjork +11
Substrate-transferred crystalline coatings have recently emerged as a groundbreaking new concept in optical interference coatings. Building upon our initial demonstration of this t…