Results 11 to 20 of about 22,663 (294)

A noise-immune cavity-assisted non-destructive detection for an optical lattice clock in the quantum regime

open access: yesNew Journal of Physics, 2017
We present and implement a non-destructive detection scheme for the transition probability readout of an optical lattice clock. The scheme relies on a differential heterodyne measurement of the dispersive properties of lattice-trapped atoms enhanced by a
Bilicki, S.   +5 more
core   +3 more sources

Demonstration of the Systematic Evaluation of an Optical Lattice Clock Using the Drift-Insensitive Self-Comparison Method [PDF]

open access: goldApplied Sciences, 2021
The self-comparison method is a powerful tool in the uncertainty evaluation of optical lattice clocks, but any drifts will cause a frequency offset between the two compared clock loops and thus lead to incorrect measurement result.
Chihua Zhou   +4 more
openalex   +3 more sources

Construction of optical system for an atomic clock-beyond atomic fountain

open access: yesFrontiers in Physics, 2022
We demonstrate the construction of the optical system in the atomic clock-beyond atomic fountain based on 87Rb atom. The optical system includes a high-stability laser system and an optical lattice.
Xiumei Wang   +21 more
doaj   +1 more source

A proof-of-concept model of compact and high-performance 87Sr optical lattice clock for space

open access: yesAIP Advances, 2021
A compact and robust design of an optical lattice clock with high stability and accuracy is needed for the implementation of optical clocks operating on the space station.
Feng Guo   +13 more
doaj   +1 more source

Toward a quantum-enhanced strontium optical lattice clock at INRIM [PDF]

open access: yesEPJ Web of Conferences, 2020
The new strontium atomic clock at INRIM seeks to establish a new frontier in quantum measurement by joining state-of-the-art optical lattice clocks and the quantized electromagnetic field provided by a cavity QED setup.
Tarallo Marco G.
doaj   +1 more source

An Evaluation of the Zeeman Shift of the 87Sr Optical Lattice Clock at the National Time Service Center

open access: yesApplied Sciences, 2020
The Zeeman shift plays an important role in the evaluation of optical lattice clocks since a strong bias magnetic field is applied for departing Zeeman sublevels and defining a quantization axis.
Xiaotong Lu   +4 more
doaj   +1 more source

Experimental determination of the E2-M1 polarizability of the strontium clock transition

open access: yesPhysical Review Research, 2023
To operate an optical lattice clock at a fractional uncertainty below 10^{−17}, one must typically consider not only electric-dipole (E1) interaction between an atom and the lattice light field when characterizing the resulting lattice light shift of the
S. Dörscher   +3 more
doaj   +1 more source

Recent Advances Concerning the 87Sr Optical Lattice Clock at the National Time Service Center

open access: yesApplied Sciences, 2018
We review recent experimental progress concerning the 87Sr optical lattice clock at the National Time Service Center in China. Hertz-level spectroscopy of the 87Sr clock transition for the optical lattice clock was performed, and closed-loop operation of
Yebing Wang   +4 more
doaj   +1 more source

Blackbody radiation shift in strontium lattice clocks revisited

open access: yesPhysical Review Research, 2021
We reevaluate the blackbody radiation (BBR) induced ac-Stark shift of the strontium clock transition (5s5p)^{3}P_{0}-(5s^{2})^{1}S_{0} at 698nm used as reference in optical lattice clocks and as secondary representation of the SI unit “second.” At room ...
Ch. Lisdat   +3 more
doaj   +1 more source

Improving the Q Factor of an Optical Atomic Clock Using Quantum Nondemolition Measurement

open access: yesPhysical Review X, 2020
Quantum nondemolition (QND) measurement is a remarkable tool for the manipulation of quantum systems. It allows specific information to be extracted while still preserving fragile quantum observables of the system.
William Bowden   +4 more
doaj   +1 more source

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