منابع مشابه
Optical atomic clocks
Optical atomic clocks represent the state of the art in the frontier of modern measurement science. In this article a detailed review on the development of optical atomic clocks that are based on trapped single ions and many neutral atoms is provided. Important technical ingredients for optical clocks are discussed and measurement precision and systematic uncertainty associated with some of the...
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Recent developments in quantum information processing may be applicable to future atomic clocks. In this paper we discuss two potential applications to trappedion frequency standards. In the first, quantum-mechanical entanglement can provide a resource for increased measurement precision in spectroscopy. In the second, we indicate how a simultaneously trapped auxiliary ion species can be used t...
متن کاملMicrofabricated Atomic Clocks at Nist
This paper presents the latest progress in the development, fabrication, and characterization of microfabricated atomic frequency references at NIST. With volumes below 10 mm the physics packages contain the complete integrated assembly for probing the ground-state hyperfine splitting frequency of the alkali atoms by coherent population trapping (CPT). This technique allows for a simple and com...
متن کاملEnd Resonances for Atomic Clocks
We discuss advantages of the “end” resonances for the miniaturized, chip-scale atomic clocks based on alkali-vapor cells filled with high-pressure buffer gases. Compared to the commonly used 0-0 resonance clock design, these advantages include a higher signal-to-noise ratio, a narrower linewidth at high vapor densities, and a significantly reduced sensitivity to the frequency stability of the p...
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ژورنال
عنوان ژورنال: Physics
سال: 2009
ISSN: 1943-2879
DOI: 10.1103/physics.2.45