Results 11 to 20 of about 40,348 (331)
Indigenisation of the Quantum Clock: An Indispensable Tool for Modern Technologies
Atoms, 2023 Time and frequency (T&F) measurement with unprecedented accuracy is the backbone for several sophisticated technologies, commensurate with the evolution of human civilisation in the 20th century in terms of communication, positioning, navigation, and ...
Subhadeep De, Arijit Sharma
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The development of active optical clock
AAPPS Bulletin, 2023 The atomic clocks, whether operating at optical or microwave region, can be divided into two categories according to their working mode, namely the passive clocks and active clocks.
Jia Zhang +3 more
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Test and Analysis of Timekeeping Performance of Atomic Clock
Sensors, 2022 At present, there are few articles about the timekeeping performance of domestic atomic clocks in their moving state. In this paper, the frequency stability changes of hydrogen atomic and cesium atomic clocks in stationary and moving states are compared ...
Shuaichen Li +3 more
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Atomic clocks for geodesy [PDF]
Reports on Progress in Physics, 2018 73 pages, 22 ...
Tanja E Mehlstäubler +4 more
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Remote Sensing, 2022 Satellite atomic clocks are the key elements for position, navigation, and timing services of the Global navigation satellite system (GNSS); it is necessary to research the characteristics of BDS-3 on-orbit satellite atomic clocks for their further ...
Yifeng Liang +3 more
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A chip-scale atomic beam clock
Nature Communications, 2023 Atomic beams are a longstanding technology for atom-based sensors and clocks with widespread use in commercial frequency standards. Here, we report the demonstration of a chip-scale microwave atomic beam clock using coherent population trapping (CPT ...
Gabriela D. Martinez +5 more
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Blackbody radiation shift in strontium lattice clocks revisited
Physical 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
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Evaluation of BDS-2 and BDS-3 Satellite Atomic Clock Products and Their Effects on Positioning
Remote Sensing, 2021 The BeiDou Navigation Satellite System (BDS) has completed third phase construction and currently provides global services, with a mixed constellation of BDS-2 and BDS-3. The newly launched BDS-3 satellites are equipped with rubidium and passive hydrogen
Shengfeng Gu +5 more
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IEEE Access, 2022 A microwave (MW) synthesizer is a key component of high-performance coherent population trapping (CPT) atomic clocks, which are competitive candidates as miniature, low-power-consumption atomic clocks.
Minghao Yao +8 more
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Atomic fountains and optical clocks at SYRTE: status and perspectives [PDF]
, 2015 In this article, we report on the work done with the LNE-SYRTE atomic clock ensemble during the last 10 years. We cover progress made in atomic fountains and in their application to timekeeping.
Abgrall, M. +11 more
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