Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Donley, E. A."'
Autor:
Dimarcq, N., Gertsvolf, M., Mileti, G., Bize, S., Oates, C. W., Peik, E., Calonico, D., Ido, T., Tavella, P., Meynadier, F., Petit, G., Panfilo, G., Bartholomew, J., Defraigne, P., Donley, E. A., Hedekvist, P. O., Sesia, I., Wouters, M., Dube, P., Fang, F., Levi, F., Lodewyck, J., Margolis, H. S., Newell, D., Slyusarev, S., Weyers, S., Uzan, J. -P., Yasuda, M., Yu, D. -H., Rieck, C., Schnatz, H., Hanado, Y., Fujieda, M., Pottie, P. -E., Hanssen, J., Malimon, A., Ashby, N.
Publikováno v:
Metrologia 61 012001 (2024)
This paper outlines the roadmap towards the redefinition of the second, which was recently updated by the CCTF Task Force created by the CCTF in 2020. The main achievements and the open challenges related to the status of the optical frequency standa
Externí odkaz:
http://arxiv.org/abs/2307.14141
Autor:
Yudin, V. I., Basalaev, M. Yu., Taichenachev, A. V., Pollock, J. W., Newman, Z. L., Shuker, M., Hansen, A., Hummon, M. T., Boudot, R., Donley, E. A., Kitching, J.
Publikováno v:
Phys. Rev. Applied 14, 024001 (2020)
We show that the light shift in atomic clocks can be suppressed using time variation of the interrogation field intensity. By measuring the clock output at two intensity levels, error signals can be generated that simultaneously stabilize a local osc
Externí odkaz:
http://arxiv.org/abs/1911.02935
Coherent dark states in atoms, created by simultaneous interaction of two coherent light fields with a 3-level system, are of prime importance in quantum state manipulation. They are used extensively in quantum sensing and quantum information applica
Externí odkaz:
http://arxiv.org/abs/1909.02649
Autor:
McGilligan, J. P., Moore, K. R., Kang, S., Mott, R., Mis, A., Roper, C., Donley, E. A., Kitching, J.
Publikováno v:
Phys. Rev. Applied 13, 044038 (2020)
We investigate a solid-state, reversible, alkali-ion battery (AIB) capable of regulating the density of alkali atoms in a vacuum system used for the production of laser-cooled atoms. The cold-atom sample can be used with in-vacuum chronoamperometry a
Externí odkaz:
http://arxiv.org/abs/1908.06898
Autor:
Shuker, M., Pollock, J. W., Boudot, R., Yudin, V. I., Taichenachev, A. V., Kitching, J., Donley, E. A.
Publikováno v:
Appl. Phys. Lett. 114, 141106 (2019)
Light-induced frequency shifts can be a key limiting contribution to the mid and long-term frequency instability in atomic clocks. In this letter, we demonstrate the experimental implementation of the combined error signal interrogation protocol to a
Externí odkaz:
http://arxiv.org/abs/1903.00566
Autor:
Kang, S., Moore, K. R., McGilligan, J. P., Mott, R., Mis, A., Roper, C., Donley, E. A., Kitching, J.
We demonstrate a novel way to form and deplete a vapor-cell magneto-optic trap (MOT) using a reversible, solid-state alkali-metal source (AMS) via an applied polarized voltage. Using ~100 mW of electrical power, a trapped-atom number of 5x10^6 has be
Externí odkaz:
http://arxiv.org/abs/1901.09186
Autor:
Shuker, M., Pollock, J. W., Boudot, R., Yudin, V. I., Taichenachev, A. V., Kitching, J., Donley, E. A.
Publikováno v:
Phys. Rev. Lett. 122, 113601 (2019)
Sophisticated Ramsey-based interrogation protocols using composite laser pulse sequences have been recently proposed to provide next-generation high-precision atomic clocks with a near perfect elimination of frequency shifts induced during the atom-p
Externí odkaz:
http://arxiv.org/abs/1812.01703
Autor:
Yudin, V. I., Taichenachev, A. V., Basalaev, M. Yu., Zanon-Willette, T., Mehlstaubler, T. E., Pollock, J. W., Shuker, M., Donley, E. A., Kitching, J.
Publikováno v:
New J. Phys. 20, 123016 (2018)
We have developed a universal method to form the reference signal for the stabilization of arbitrary atomic clocks based on Ramsey spectroscopy. Our approach uses an interrogation scheme of the atomic system with two different Ramsey periods and a sp
Externí odkaz:
http://arxiv.org/abs/1807.10158
Autor:
Pollock, J. W., Yudin, V. I., Shuker, M., Basalaev, M. Yu., Taichenachev, A. V., Liu, X., Kitching, J., Donley, E. A.
Publikováno v:
Phys. Rev. A 98, 053424 (2018)
The off-resonant AC Stark shift for coherent population trapping (CPT) resonances probed with Ramsey spectroscopy is investigated experimentally and theoretically. Measurements with laser-cooled $^{87}$Rb atoms show excellent quantitative agreement w
Externí odkaz:
http://arxiv.org/abs/1805.06029
Autor:
Yudin, V. I., Taichenachev, A. V., Basalaev, M. Yu., Zanon-Willette, T., Pollock, J. W., Shuker, M., Donley, E. A., Kitching, J.
Publikováno v:
Phys. Rev. Applied 9, 054034 (2018)
When performing precision measurements, the quantity being measured is often perturbed by the measurement process itself. This includes precision frequency measurements for atomic clock applications carried out with Ramsey spectroscopy. With the aim
Externí odkaz:
http://arxiv.org/abs/1712.03365