Results 1 to 10 of about 99,971 (179)
Mirror Clock: A Strategy for Identifying Atomic Clock Frequency Jumps [PDF]
Sensors, 2022 Atomic clock frequency jumps directly influence the accuracy and reliability of timekeeping systems. The necessary corrections are typically implemented by postprocessing mutual comparison data between multiple atomic clocks based on the overly strict ...
Mochi Liu +5 more
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Test and Analysis of Timekeeping Performance of Atomic Clock [PDF]
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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Design of a RF Switch Used in Redundant Atomic Clock Configurations [PDF]
Sensors, 2019 Atomic clocks provide frequency reference signals for communication, aerospace, satellite navigation and other systems. The redundant configuration of atomic clocks is necessary for ensuring the continuity and stability of the system.
Yuqing Hou +3 more
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Disciplining a Rubidium Atomic Clock Based on Adaptive Kalman Filter [PDF]
SensorsRubidium atomic clocks have been used extensively in various fields, with applications such as a core component of Global Navigation Satellite Systems (GNSS). However, they exhibit inherently poor long-term stability.
Kun Liu +3 more
doaj +2 more sources
New Journal of Physics, 2018 Atomic clocks use atomic transitions as frequency references. The susceptibility of the atomic transition to external fields limits clock stability and introduces systematic frequency shifts.
Nitzan Akerman, Roee Ozeri
doaj +4 more sources
Microcell atomic clock using laser current-actuated power modulation with 10−12 range stability at 1 day [PDF]
Scientific ReportsWe present a coherent-population trapping (CPT) microcell atomic clock using symmetric auto-balanced Ramsey (SABR) spectroscopy. The pulsed SABR sequence is applied through direct current-based power modulation of the vertical-cavity surface-emitting ...
Carlos Manuel Rivera-Aguilar +7 more
doaj +2 more sources
Long-Term Stability Improvements of the Miniature Atomic Clock Through Enhanced Thermal Environmental Control [PDF]
SensorsAdvancement of compact atomic clocks has centered on reducing footprint and power consumption. Such developments come at the cost of the clock’s stability performance.
Emily Gokie +2 more
doaj +2 more sources
Reviews of Modern Physics, 2015 Optical atomic clocks represent the state-of-the-art in the frontier of modern measurement science. In this article we provide a detailed review on the development of optical atomic clocks that are based on trapped single ions and many neutral atoms. We discuss important technical ingredients for optical clocks, and we present measurement precision and
Jun Ye, Ekkehard Peik
exaly +4 more sources
Stability of atomic clocks based on entangled atoms [PDF]
Physical Review Letters, 2004 We analyze the effect of realistic noise sources for an atomic clock consisting of a local oscillator that is actively locked to a spin-squeezed (entangled) ensemble of $N$ atoms. We show that the use of entangled states can lead to an improvement of the
A. André +6 more
core +3 more sources
Efficient atomic clocks operated with several atomic ensembles [PDF]
Physical Review Letters, 2013 Atomic clocks are typically operated by locking a local oscillator (LO) to a single atomic ensemble. In this article we propose a scheme where the LO is locked to several atomic ensembles instead of one.
Borregaard, Johannes +1 more
core +8 more sources