Whispering-gallery-mode sensors for biological and physical sensing
The term whispering gallery mode (WGM) was first introduced to describe the curvilinear
propagation of sound waves under a cathedral dome. The physical concept has now been …
propagation of sound waves under a cathedral dome. The physical concept has now been …
Highly charged ions: Optical clocks and applications in fundamental physics
MG Kozlov, MS Safronova… - Reviews of Modern …, 2018 - APS
Recent developments in frequency metrology and optical clocks have been based on
electronic transitions in atoms and singly charged ions as references. The control over all …
electronic transitions in atoms and singly charged ions as references. The control over all …
Resolving the gravitational redshift across a millimetre-scale atomic sample
Einstein's theory of general relativity states that clocks at different gravitational potentials tick
at different rates relative to lab coordinates—an effect known as the gravitational redshift. As …
at different rates relative to lab coordinates—an effect known as the gravitational redshift. As …
Multi-qubit gates and Schrödinger cat states in an optical clock
Many-particle entanglement is a key resource for achieving the fundamental precision limits
of a quantum sensor. Optical atomic clocks, the current state of the art in frequency precision …
of a quantum sensor. Optical atomic clocks, the current state of the art in frequency precision …
Realizing spin squeezing with Rydberg interactions in an optical clock
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 …
quantum physics, combining precise single-particle control and detection with a range of …
Improved limits on the coupling of ultralight bosonic dark matter to photons from optical atomic clock comparisons
M Filzinger, S Dörscher, R Lange, J Klose, M Steinel… - Physical Review Letters, 2023 - APS
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 …
based on long-term measurements of two optical frequency ratios. In these optical clock …
Quantum-Logic Clock with a Systematic Uncertainty below
SM Brewer, JS Chen, AM Hankin, ER Clements… - Physical review …, 2019 - APS
We describe an optical atomic clock based on quantum-logic spectroscopy of the S 0 1↔ P
3 0 transition in Al+ 27 with a systematic uncertainty of 9.4× 10-19 and a frequency stability …
3 0 transition in Al+ 27 with a systematic uncertainty of 9.4× 10-19 and a frequency stability …
An optical atomic clock based on a highly charged ion
Optical atomic clocks are the most accurate measurement devices ever constructed and
have found many applications in fundamental science and technology,–. The use of highly …
have found many applications in fundamental science and technology,–. The use of highly …
Demonstration of 4.8 × 10−17 stability at 1 s for two independent optical clocks
Optical atomic clocks require local oscillators with exceptional optical coherence owing to
the challenge of performing spectroscopy on their ultranarrow-linewidth clock transitions …
the challenge of performing spectroscopy on their ultranarrow-linewidth clock transitions …
Direct comparison of two spin-squeezed optical clock ensembles at the 10−17 level
JM Robinson, M Miklos, YM Tso, CJ Kennedy… - Nature Physics, 2024 - nature.com
Building scalable quantum systems that demonstrate performance enhancement based on
entanglement is a major goal in quantum computing and metrology. The main challenge …
entanglement is a major goal in quantum computing and metrology. The main challenge …