Zobrazeno 1 - 5
of 5
pro vyhledávání: '"D B, Hume"'
Autor:
S M, Brewer, J-S, Chen, A M, Hankin, E R, Clements, C W, Chou, D J, Wineland, D B, Hume, D R, Leibrandt
Publikováno v:
Physical review letters. 123(3)
We describe an optical atomic clock based on quantum-logic spectroscopy of the ^{1}S_{0}↔^{3}P_{0} transition in ^{27}Al^{+} with a systematic uncertainty of 9.4×10^{-19} and a frequency stability of 1.2×10^{-15}/sqrt[τ]. A ^{25}Mg^{+} ion is si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f33ef642bb39e1afebe66f8c1818fa5a
https://pubmed.ncbi.nlm.nih.gov/31386450
https://pubmed.ncbi.nlm.nih.gov/31386450
Autor:
David R. Leibrandt, D. B. Hume
Publikováno v:
Conference on Lasers and Electro-Optics.
The Ion Storage Group at NIST develops stable optical cavities, which enable our trapped-ion optical clocks. I will give an overview of these efforts and describe a new cryogenic cavity with significantly reduced thermal noise.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b71cff1ff945d032fb0c9493aa6456bb
https://doi.org/10.1364/cleo_at.2017.jf2d.1
https://doi.org/10.1364/cleo_at.2017.jf2d.1
Publikováno v:
Physical review letters. 117(24)
We experimentally study particle exchange in a dissipative double-well potential using laser-cooled atoms in a hybrid trap. We measure the particle hopping rate as a function of barrier height, temperature, and atom number. Single-particle resolution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8e5be216483669f0c0e35cac608f3ff
https://pubmed.ncbi.nlm.nih.gov/28009196
https://pubmed.ncbi.nlm.nih.gov/28009196
Autor:
D. B. Hume, Tilman Zibold, Helmut Strobel, Luca Pezzè, Daniel Linnemann, Augusto Smerzi, W. Muessel, Markus K. Oberthaler
Publikováno v:
Science (N. Y., N.Y.) 345 (2014): 424–427. doi:10.1126/science.1250147
info:cnr-pdr/source/autori:Strobel, Helmut; Muessel, Wolfgang; Linnemann, Daniel; Zibold, Tilman; Hume, David B.; Pezze, Luca; Smerzi, Augusto; Oberthaler, Markus K./titolo:Fisher information and entanglement of non-Gaussian spin states/doi:10.1126%2Fscience.1250147/rivista:Science (N. Y., N.Y.)/anno:2014/pagina_da:424/pagina_a:427/intervallo_pagine:424–427/volume:345
info:cnr-pdr/source/autori:Strobel, Helmut; Muessel, Wolfgang; Linnemann, Daniel; Zibold, Tilman; Hume, David B.; Pezze, Luca; Smerzi, Augusto; Oberthaler, Markus K./titolo:Fisher information and entanglement of non-Gaussian spin states/doi:10.1126%2Fscience.1250147/rivista:Science (N. Y., N.Y.)/anno:2014/pagina_da:424/pagina_a:427/intervallo_pagine:424–427/volume:345
Entanglement is the key quantum resource for improving measurement sensitivity beyond classical limits. However, the production of entanglement in mesoscopic atomic systems has been limited to squeezed states, described by Gaussian statistics. Here w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9abd3f99522c935da91316d98801982
Autor:
T, Rosenband, P O, Schmidt, D B, Hume, W M, Itano, T M, Fortier, J E, Stalnaker, K, Kim, S A, Diddams, J C J, Koelemeij, J C, Bergquist, D J, Wineland
Publikováno v:
Physical review letters. 98(22)
We report, for the first time, laser spectroscopy of the 1S0--3P0 clock transition in 27Al+. A single aluminum ion and a single beryllium ion are simultaneously confined in a linear Paul trap, coupled by their mutual Coulomb repulsion. This coupling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::2cf1916354ac5ab6d0b1df2ae9d8719e
https://pubmed.ncbi.nlm.nih.gov/17677830
https://pubmed.ncbi.nlm.nih.gov/17677830