Results 41 to 50 of about 6,623 (297)
A low phase noise microwave source for high‐performance CPT Rb atomic clock
Electronics Letters, 2021 Phase noise of the frequency synthesizer is one of the main limitations to the short‐term stability of microwave atomic clocks. Here, a low‐noise, simple‐architecture microwave frequency synthesizer for a coherent population trapping (CPT) clock is ...
Xiaodong Li +10 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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Cold atom clocks and applications [PDF]
Journal of Physics B: Atomic, Molecular and Optical Physics, 2005 30 pages, 11 ...
Bize, Sébastien +16 more
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Journal of Research of the National Bureau of Standards, 1983 The history of atomic and molecular standards of time and frequency is traced from the earliest work on molecular and atomic beam resonance techniques to more recent developments that promise improved standards in the future. The various devices currently used as standards are discussed in detail from an historical prospective.
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A lab-based test of the gravitational redshift with a miniature clock network
Nature Communications, 2023 Einstein’s theory of general relativity predicts that a clock at a higher gravitational potential will tick faster than an otherwise identical clock at a lower potential, an effect known as the gravitational redshift.
Xin Zheng +4 more
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Optical Clock with Ultracold Neutral Atoms [PDF]
Physical Review Letters, 2002 4 pages, 3 ...
Wilpers, G. +5 more
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Mapping Out Atom-Wall Interaction with Atomic Clocks [PDF]
Physical Review Letters, 2009 We explore a feasibility of measuring atom-wall interaction using atomic clocks based on atoms trapped in engineered optical lattices. Optical lattice is normal to the wall. By monitoring the wall-induced clock shift at individual wells of the lattice, one would measure a dependence of the atom-wall interaction on the atom-wall separation.
Derevianko, A. +2 more
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Detecting atomic clock frequency trends using an optimal stopping method [PDF]
, 2016 We consider the problem of rapid detection of anomalies in atomic clocks. We assume that the clock error evolution can be modeled by a Wiener process with a drift changing from 0 to mu not equal 0 at some random unobservable time theta and we approach ...
TAVELLA, PATRIZIA +3 more
core +1 more source
A Pseudo Random Pursuit Strategy for Atomic Clocks
IEEE Access, 2023 The atomic clock prediction algorithm is a critical part of the atomic time scale system to ensure its stability and accuracy. Random pursuit strategy (RPS) has been verified on the prediction capability of hydrogen maser and cesium clock in our previous
Qian Xu +4 more
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Efficient Atomic Clocks Operated with Several Atomic Ensembles [PDF]
Physical Review Letters, 2013 10 pages, 8 ...
Borregaard, Johannes +1 more
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