Results 11 to 20 of about 5,191 (212)
Atomic clocks for geodesy [PDF]
Reports on Progress in Physics, 2018 73 pages, 22 ...
Tanja E Mehlstäubler +4 more
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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
Ludlow, Andrew D. +4 more
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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 long-term stability of the clock when the measurement is limited by decoherence associated with ...
Andre, A., Sorensen, A. S., Lukin, M. D.
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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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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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FEBS Letters, EarlyView.Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi +5 more
wiley +1 more source
Efficient Atomic Clocks Operated with Several Atomic Ensembles [PDF]
Physical Review Letters, 2013 10 pages, 8 ...
Borregaard, Johannes +1 more
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