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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 …
Prospects and challenges for squeezing-enhanced optical atomic clocks
Optical atomic clocks are a driving force for precision measurements due to the high
accuracy and stability demonstrated in recent years. While further improvements to the …
accuracy and stability demonstrated in recent years. While further improvements to the …
An atomic-array optical clock with single-atom readout
Currently, the most accurate and stable clocks use optical interrogation of either a single ion
or an ensemble of neutral atoms confined in an optical lattice. Here, we demonstrate a new …
or an ensemble of neutral atoms confined in an optical lattice. Here, we demonstrate a new …
176Lu+ clock comparison at the 10−18 level via correlation spectroscopy
The extreme precision of optical atomic clocks has led to an anticipated redefinition of the
second by the International System of Units. Furthermore, accuracies pushing the boundary …
second by the International System of Units. Furthermore, accuracies pushing the boundary …
Direct detection of ultralight dark matter bound to the Sun with space quantum sensors
Recent advances in quantum sensors, including atomic clocks, enable searches for a broad
range of dark matter candidates. The question of the dark matter distribution in the Solar …
range of dark matter candidates. The question of the dark matter distribution in the Solar …
[HTML][HTML] Entanglement-enhanced optical atomic clocks
Recent developments in atomic physics have enabled the experimental generation of many-
body entangled states to boost the performance of quantum sensors beyond the Standard …
body entangled states to boost the performance of quantum sensors beyond the Standard …
Evaluation of a Optical Clock with a Direct Measurement of the Blackbody Radiation Shift and Determination of the Clock Frequency
We report on an evaluation of an optical clock that uses the S 2 1/2→ D 2 5/2 transition of a
single Sr+ 88 ion as the reference. In contrast to previous work, we estimate the effective …
single Sr+ 88 ion as the reference. In contrast to previous work, we estimate the effective …
Lifetime-Limited Interrogation of Two Independent Clocks Using Correlation Spectroscopy
Laser decoherence limits the stability of optical clocks by broadening the observable
resonance linewidths and adding noise during the dead time between clock probes …
resonance linewidths and adding noise during the dead time between clock probes …
Direct observation of ion micromotion in a linear Paul trap
In this paper, direct observation of micromotion for multiple ions in a laser-cooled trapped
ion crystal is discussed along with a measurement technique for micromotion amplitude …
ion crystal is discussed along with a measurement technique for micromotion amplitude …
Prospects of a Ion Clock
K Beloy - Physical review letters, 2021 - APS
We propose a high-performance atomic clock based on the 1.81 PHz transition between the
ground and first-excited state of doubly ionized lead. Utilizing an even isotope of lead, both …
ground and first-excited state of doubly ionized lead. Utilizing an even isotope of lead, both …