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Towards a Re-definition of the Second Based on Optical Atomic Clocks [PDF]
, 2015 The rapid increase in accuracy and stability of optical atomic clocks compared to the caesium atomic clock as primary standard of time and frequency asks for a future re-definition of the second in the International System of Units (SI).
Riehle, Fritz
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Quantum Variational Optimization of Ramsey Interferometry and Atomic Clocks
Physical Review X, 2021 We discuss quantum variational optimization of Ramsey interferometry with ensembles of N entangled atoms, and its application to atomic clocks based on a Bayesian approach to phase estimation.
Raphael Kaubruegger +4 more
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The scientific career and contributions of Prof. Wang Yiqiu
Frontiers in Physics, 2022 This review aimed to recount the scientific career and contributions of Prof. Wang Yiqiu, as well as his contribution to the research on quantum precision measurement and cold atom physics, as a tribute to his upcoming 90th birthday.
Xuzong Chen +4 more
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Magic Wavelengths for Optical-Lattice Based Cs and Rb Active Clocks
Atoms, 2020 Active clocks could provide better stabilities during initial stages of measurements over passive clocks, in which stabilities become saturated only after long-term measurements.
Sukhjit Singh +4 more
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Frontiers in Earth Science, 2023 Determination of the Earth’s gravity field and geopotential value is one of the fundamental topics in physical geodesy. Traditional terrestrial gravity and precise leveling measurements can be used to determine the geopotential values at a local or ...
Mohammad Bagherbandi +4 more
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Coherent manipulation of atomic qubits in optical micropotentials [PDF]
, 2007 We experimentally demonstrate the coherent manipulation of atomic states in far-detuned dipole traps and registers of dipole traps based on two-dimensional arrays of microlenses.
A. Kaplan +24 more
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Probing supersymmetry breaking scale with atomic clocks
Nuclear Physics B, 2023 The supersymmetry (SUSY) breaking mechanism inevitably predicts the existence of the sgoldstinos, which can play the role of wave-like dark matter. Due to the ubiquitous coupling to the electromagnetic fields, the light scalar sgoldstino dark matter can ...
Victor V. Flambaum +4 more
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Blackbody radiation shift assessment for a lutetium ion clock
Nature Communications, 2018 There is a continuous effort to improve the accuracy of atomic clocks. Here the authors measure the static differential scalar polarizability of Lutetium ion resonant transitions and its lower light shift from blackbody radiation makes it a promising ...
K. J. Arnold +4 more
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Frontiers in Physics, 2023 Attempts are made to unify gravity with the other three fundamental forces of nature. As suggested by higher dimensional models, this unification may require space and time variation of some of the dimensionless fundamental constants.
Yan-Mei Yu +3 more
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, 2020 A recent proposal describes space based gravitational wave (GW) detection with optical lattice atomic clocks [Kolkowitz et. al., Phys. Rev. D 94, 124043 (2016)] [1].
He, Feifan, Zhang, Baocheng
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