Zobrazeno 1 - 10
of 25
pro vyhledávání: '"D. M. Meekhof"'
Autor:
James C. Bergquist, Fred L. Walls, David J. Wineland, Thomas E. Parker, John J. Bollinger, Wayne M. Itano, D. M. Meekhof, Robert E. Drullinger, Jefferts, W D. Lee, D. B. Sullivan
Publikováno v:
Journal of Research of the National Institute of Standards and Technology
The development of atomic frequency standards at NIST is discussed and three of the key frequency-standard technologies of the current era are described. For each of these technologies, the most recent NIST implementation of the particular type of st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6913c111c5a47bc56cb42460027c6e9b
https://pubmed.ncbi.nlm.nih.gov/27500017
https://pubmed.ncbi.nlm.nih.gov/27500017
Autor:
A. De Marchi, Jon H. Shirley, Filippo Levi, W D. Lee, Robert E. Drullinger, Fred L. Walls, Thomas E. Parker, Craig W. Nelson, Thomas P. Heavner, Giovanni Antonio Costanzo, Leo W. Hollberg, D. M. Meekhof, Steven R. Jefferts
Publikováno v:
Metrologia. 39:321-336
The evaluation procedure of a new laser-cooled caesium fountain primary frequency standard developed at the National Institute of Standards and Technology (NIST) is described. The new standard, NIST-F1, is described in some detail and typical operati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af75ac9974311a28d8e35610d3898fc7
https://doi.org/10.1088/0026-1394/39/4/1
https://doi.org/10.1088/0026-1394/39/4/1
Autor:
David J. Wineland, W. M. Itano, C. J. Myatt, C. S. Wood, D. M. Meekhof, Christopher Monroe, Dietrich Leibfried, B. E. King
Publikováno v:
Quantum Computing: Where Do We Want to Go Tomorrow?
The development of a quantum computer based on a system of trapped atomic ions is described, following the proposal of Cirac and Zoller. Initial results on a two-bit quantum logic gate are presented, and select experimental issues in scaling the syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b61152c9fff0113fc7b2939b3ff4899
https://doi.org/10.1002/(sici)1521-3978(199806)46:4/5<363::aid-prop363>3.0.co
https://doi.org/10.1002/(sici)1521-3978(199806)46:4/5<363::aid-prop363>3.0.co
Autor:
David J. Wineland, W. M. Itano, Dietrich Leibfried, B. E. King, Christopher Monroe, D. M. Meekhof
Publikováno v:
Journal of Modern Optics. 44:2485-2505
We report the creation and full determination of several quantum states of motion of a 9Be+ ion bound in a RF (Paul) trap. The states are coherently prepared from an ion which has been initially laser cooled to the zero-point of motion. We create sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79bd2041202b1cc0444bcf8eacbf9b91
https://doi.org/10.1080/09500349708231896
https://doi.org/10.1080/09500349708231896
Autor:
David J. Wineland, Christopher Monroe, D. M. Meekhof, Dietrich Leibfried, B. E. King, Wayne M. Itano
Publikováno v:
Accounts of Chemical Research. 29:585-590
A single atom confined in an electromagnetic trap (see Figure 1) has many similarities to a molecule. Spectroscopy reveals both internal electronic structure and external vibrational structure. In the case of a trapped atom, the vibrational states ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e95eff21e49944fe4f86ce54bad985ed
https://doi.org/10.1021/ar950252i
https://doi.org/10.1021/ar950252i
Autor:
Wayne M. Itano, Dietrich Leibfried, B. E. King, Christopher Monroe, David J. Wineland, D. M. Meekhof
Publikováno v:
Physical Review Letters. 77:4281-4285
We reconstruct the density matrices and Wigner functions for various quantum states of motion of a harmonically bound ${}^{9}{\mathrm{Be}}^{+}$ ion. We apply coherent displacements of different amplitudes and phases to the input state and measure the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::731e85ac34b2c0a0a2fb64b7c477d4a2
https://doi.org/10.1103/physrevlett.77.4281
https://doi.org/10.1103/physrevlett.77.4281
Publikováno v:
Science. 272:1131-1136
A "Schrodinger cat"-like state of matter was generated at the single atom level. A trapped 9Be+ ion was laser-cooled to the zero-point energy and then prepared in a superposition of spatially separated coherent harmonic oscillator states. This state
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be1df2505ca5525b4b1bae9f1a50ee53
https://doi.org/10.1126/science.272.5265.1131
https://doi.org/10.1126/science.272.5265.1131
Publikováno v:
Physical Review Letters. 76:1796-1799
We report the creation of thermal, Fock, coherent, and squeezed states of motion of a harmonically bound {sup 9}Be{sup +} ion. The last three states are coherently prepared from an ion which has been initially laser cooled to the zero point of motion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3310e2f3b65b72887941aa08922c67ff
https://doi.org/10.1103/physrevlett.76.1796
https://doi.org/10.1103/physrevlett.76.1796
Publikováno v:
1998 Conference on Precision Electromagnetic Measurements Digest (Cat. No.98CH36254).
We have designed and constructed a laser-cooled cesium fountain for use as a primary frequency standard. This standard incorporates several unique design features, including a method for mapping the C-field region, a second microwave cavity for use i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbd7b336793b725668d68c22a31d636a
https://doi.org/10.1109/cpem.1998.699818
https://doi.org/10.1109/cpem.1998.699818
Autor:
Filippo Levi, D. M. Meekhof, Thomas E. Parker, Fred L. Walls, D. Lee, Robert E. Drullinger, Leo W. Hollberg, Craig W. Nelson, Steven R. Jefferts
Publikováno v:
Proceedings of the 1998 IEEE International Frequency Control Symposium (Cat. No.98CH36165).
The Time and Frequency Division of the National Institute of Standards and Technology (NIST) begun operation of a laser-cooled cesium atomic fountain for evaluation as a possible primary frequency standard. This device is conceptually similar to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1db61b88415240bfd8145dd1bc391cce
https://doi.org/10.1109/freq.1998.717868
https://doi.org/10.1109/freq.1998.717868