Dynamic polarizabilities and related properties of clock states of ytterbium atom
V. A. Dzuba,A. Derevianko +1 more
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In this paper, relativistic many-body calculations of the static and dynamic dipole polarizabilities of the ground $6s^2 ^1S_0$ and the first excited ground states of Yb were carried out.Citations
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Atomic clock performance enabling geodesy below the centimetre level
W. F. McGrew,W. F. McGrew,Xiaogang Zhang,Xiaogang Zhang,R. J. Fasano,R. J. Fasano,Stefan A. Schäffer,Stefan A. Schäffer,K. Beloy,Daniele Nicolodi,Daniele Nicolodi,Roger C. Brown,Roger C. Brown,N. Hinkley,N. Hinkley,Gianmaria Milani,Gianmaria Milani,Marco Schioppo,Marco Schioppo,Tai Hyun Yoon,Tai Hyun Yoon,Andrew D. Ludlow,Andrew D. Ludlow +22 more
TL;DR: Local optical clock measurements that surpass the current ability to account for the gravitational distortion of space-time across the surface of Earth are demonstrated and improved techniques allow the measurement of a frequency difference with an uncertainty of the order of 10–19 between two independent optical lattice clocks, suggesting that they may be able to improve state-of-the-art geodetic techniques.
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Theory and applications of atomic and ionic polarizabilities
TL;DR: In this paper, a review examines existing theoretical methods of determining atomic and ionic polarizabilities, and discusses their relevance to various applications with particular emphasis on cold-atom physics and the metrology of atomic frequency standards.
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Gauge fields for ultracold atoms in optical superlattices
Fabrice Gerbier,Jean Dalibard +1 more
TL;DR: In this article, the authors present a scheme that produces a strong U(1)-like gauge field on cold atoms confined in a two-dimensional square optical lattice, which relies on two essential features, a long-lived metastable excited state that exists for alkaline-earth or ytterbium atoms and an optical superlattice.
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2018 Table of static dipole polarizabilities of the neutral elements in the periodic table
TL;DR: A 2018 update of the most accurate calculated and experimental static dipole polarizabilities of the neutral atoms in the Periodic Table from nuclear charge Z = 1 to 120 is given in this article.
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Colloquium: Physics of optical lattice clocks
TL;DR: Recently invented and demonstrated optical lattice clocks hold great promise for improving the precision of modern time keeping as mentioned in this paper, and they aim at the ${10}^{\ensuremath{-}18}$ fractional accuracy, which translates into a clock that would neither lose nor gain a fraction of a second over an estimated age of the Universe.