Results 11 to 20 of about 526 (247)
A proof-of-concept model of compact and high-performance 87Sr optical lattice clock for space
AIP 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
Applied Sciences, 2022 Accurately manipulating quantum states is a fundamental strategy for improving the performance of quantum metrology, computing, and simulation. However, the quantum state is susceptible to dephasing due to the temperature and density of the atomic ...
Feng Guo +3 more
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Minimizing the dick effect in an optical lattice clock [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2010 6 pages, 10 figures.
Westergaard, Philip G. +2 more
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Hyperpolarizability Effects in a Sr Optical Lattice Clock [PDF]
Physical Review Letters, 2006 We report the observation of the higher order frequency shift due to the trapping field in a $^{87}$Sr optical lattice clock. We show that at the magic wavelength of the lattice, where the first order term cancels, the higher order shift will not constitute a limitation to the fractional accuracy of the clock at a level of $10^{-18}$.
Brusch, Anders +4 more
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PRX Quantum, 2022 We demonstrate a cavity-based solution to scale up experiments with ultracold atoms in optical lattices by an order of magnitude over state-of-the-art free-space lattices.
A. J. Park +6 more
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Demonstration of a time scale with the 87Sr optical lattice clock at NTSC
AIP Advances, 2023 Optical clocks have been applied to the generation of time scales since they provide superb uncertainty and instability in recent years. This paper presents the simulations about the impact of the optical clock’s operational strategies on the performance
Qinfang Xu +6 more
doaj +1 more source
A clock network for geodesy and fundamental science
Nature Communications, 2016 Comparing the frequency of two distant optical clocks will enable sensitive tests of fundamental physics. Here, the authors compare two strontium optical-lattice clocks 690 kilometres apart to a degree of accuracy that is limited only by the uncertainty ...
C. Lisdat +34 more
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A simplified optical lattice clock [PDF]
Applied Physics B, 2009 Existing optical lattice clocks demonstrate a high level of performance, but they remain complex experimental devices. In order to address a wider range of applications including those requiring transportable devices, it will be necessary to simplify the laser systems and reduce the amount of support hardware.
POLI, NICOLA +4 more
openaire +4 more sources
Applied 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
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Cancellation of collisional frequency shifts in optical lattice clocks with Rabi spectroscopy
New Journal of Physics, 2016 We analyze both the s- and p -wave collision induced frequency shifts and propose an over- π pulse scheme to cancel the shifts in optical lattice clocks interrogated by a Rabi pulse.
Sangkyung Lee +3 more
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