Roadmap on Atomtronics: State of the art and perspective
Atomtronics deals with matter-wave circuits of ultracold atoms manipulated through
magnetic or laser-generated guides with different shapes and intensities. In this way, new …
magnetic or laser-generated guides with different shapes and intensities. In this way, new …
Rydberg states of alkali atoms in atomic vapour as SI-traceable field probes and communications receivers
Rydberg states of alkali atoms are highly sensitive to electric fields because their electron
wavefunction has a large spatial extent, leading to large polarizabilities for static fields and …
wavefunction has a large spatial extent, leading to large polarizabilities for static fields and …
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 …
Clock with Systematic Uncertainty
We report an optical lattice clock with a total systematic uncertainty of 8.1× 10-19 in fractional
frequency units, representing the lowest uncertainty of any clock to date. The clock relies on …
frequency units, representing the lowest uncertainty of any clock to date. The clock relies on …
Frequency ratio measurements at 18-digit accuracy using an optical clock network
Nature, 2021 - nature.com
Atomic clocks are vital in a wide array of technologies and experiments, including tests of
fundamental physics. Clocks operating at optical frequencies have now demonstrated …
fundamental physics. Clocks operating at optical frequencies have now demonstrated …
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 …
Half-minute-scale atomic coherence and high relative stability in a tweezer clock
The preparation of large, low-entropy, highly coherent ensembles of identical quantum
systems is fundamental for many studies in quantum metrology, simulation and information …
systems is fundamental for many studies in quantum metrology, simulation and information …
Direct comparison of two spin-squeezed optical clock ensembles at the 10−17 level
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 …
Differential clock comparisons with a multiplexed optical lattice clock
Rapid progress in optical atomic clock performance has advanced the frontiers of
timekee**, metrology and quantum science,–. Despite considerable efforts, the …
timekee**, metrology and quantum science,–. Despite considerable efforts, the …
Improved limits for violations of local position invariance from atomic clock comparisons
We compare two optical clocks based on the S 2 1/2 (F= 0)→ D 2 3/2 (F= 2) electric
quadrupole (E2) and the S 2 1/2 (F= 0)→ F 2 7/2 (F= 3) electric octupole (E3) transition of Yb …
quadrupole (E2) and the S 2 1/2 (F= 0)→ F 2 7/2 (F= 3) electric octupole (E3) transition of Yb …