Výsledky vyhledávání - "Samuel M Brewer"

Akademický článek

Optical atomic clock comparison through turbulent air

Publikováno v: Physical Review Research, Vol 2, Iss 3, p 033395 (2020)

We use frequency-comb-based optical two-way time-frequency transfer (O-TWTFT) to measure the optical frequency ratio of state-of-the-art ytterbium and strontium optical atomic clocks separated by a 1.5-km open-air link. Our free-space measurement is

Externí odkaz: https://doaj.org/article/73e8b65a1e2d4fd4b5b0a1350a920fb7

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Akademický článek

Experiments with Highly-Ionized Atoms in Unitary Penning Traps

Autor: Shannon Fogwell Hoogerheide, Aung S. Naing, Joan M. Dreiling, Samuel M. Brewer, Nicholas D. Guise, Joseph N. Tan

Publikováno v: Atoms, Vol 3, Iss 3, Pp 367-391 (2015)

Highly-ionized atoms with special properties have been proposed for interesting applications, including potential candidates for a new generation of optical atomic clocks at the one part in 1019 level of precision, quantum information processing and

Externí odkaz: https://doaj.org/article/ab40f094f98f49c2820b52b16ead3af5

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Lifetime-Limited Interrogation of Two Independent Al+27 Clocks Using Correlation Spectroscopy

Autor: Chin-Wen Chou, David R. Leibrandt, Jose Valencia, David Hume, Jwo-Sy Chen, Aaron M. Hankin, Kaifeng Cui, May E. Kim, Samuel M. Brewer, Ethan Clements

Publikováno v: Physical Review Letters. 125

Laser decoherence limits the stability of optical clocks by broadening the observable resonance linewidths and adding noise during the dead time between clock probes. Correlation spectroscopy avoids these limitations by measuring correlated atomic tr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1ff52c7bc16035a7fd915fca4af9675b
https://doi.org/10.1103/physrevlett.125.243602

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Measurement of the P1/22−P3/22 fine-structure splitting in fluorinelike Kr, W, Re, Os, and Ir

Autor: Amy Gall, Randy Doriese, Endre Takacs, Paul Szypryt, Joseph W. Fowler, Andrey V. Volotka, Daniel S. Swetz, Galen C. O'Neil, S. Sanders, Yang Yang, Joel N. Ullom, Dipti, Samuel M. Brewer, Yuri Ralchenko, Joseph N. Tan, Aung Naing

Publikováno v: Physical Review A. 102

Quantum electrodynamics (QED) is currently considered to be one of the most accurate theories of fundamental interactions. As its extraordinary precision offers unique scientific opportunities, e.g., search for new physics, stringent experimental tes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1f92c2dc94671fb4ce902c2b92c9c843
https://doi.org/10.1103/physreva.102.032803

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Lifetime-Limited Interrogation of Two Independent ^{27}Al^{+} Clocks Using Correlation Spectroscopy

Autor: Ethan R, Clements, May E, Kim, Kaifeng, Cui, Aaron M, Hankin, Samuel M, Brewer, Jose, Valencia, Jwo-Sy, Chen, Chin-Wen, Chou, David R, Leibrandt, David B, Hume

Publikováno v: Phys Rev Lett

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::a8a0585b34e62268846375fcce8c526a
https://pubmed.ncbi.nlm.nih.gov/33412042

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Quadruply Ionized Barium as a Candidate for a High-Accuracy Optical Clock

Autor: K. Beloy, V. A. Dzuba, Samuel M. Brewer

We identify ${\mathrm{Ba}}^{4+}$ (Te-like) as a promising candidate for a high-accuracy optical clock. The lowest-lying electronic states are part of a ${^{3}P}_{J}$ fine structure manifold with anomalous energy ordering, being nonmonotonic in $J$. W

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1db7bc6d6ac31c705daaa32746b5f590

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