Skip to main content

11 Result(s)

within S. Bize Remove this filter

and

  1. No Access

    Article

    Prospects for fundamental physics with LISA

    In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental physics. Given the very broa...

    Enrico Barausse, Emanuele Berti, Thomas Hertog… in General Relativity and Gravitation (2020)

  2. Article

    Open Access

    Determination of a high spatial resolution geopotential model using atomic clock comparisons

    Recent technological advances in optical atomic clocks are opening new perspectives for the direct determination of geopotential differences between any two points at a centimeter-level accuracy in geoid heigh...

    G. Lion, I. Panet, P. Wolf, C. Guerlin, S. Bize, P. Delva in Journal of Geodesy (2017)

    Download PDF (8602 KB) View Article

  3. No Access

    Chapter and Conference Paper

    Real-Time Realization of UTC at Observatoire de Paris

    UTC(OP), the French national realization of the international Coordinated Universal Time, was redesigned and rebuilt. The first step was the implementation in October 2012 of a new algorithm based on an H-mase...

    G. D. Rovera, S. Bize, B. Chupin, J. Guéna, Ph. Laurent… in The Science of Time 2016 (2017)

  4. Article

    Correction: Corrigendum: Experimental realization of an optical second with strontium lattice clocks

    Nature Communications 4: Article number: 2109 (2013); Published: 9 July 2013; Updated: 31 October 2013. In the legend to Fig. 4c in this Article, references 47 and 48 were incorrectly included in a list of sou...

    R. Le Targat, L. Lorini, Y. Le Coq, M. Zawada, J. Guéna… in Nature Communications (2013)

    Download PDF (120 KB) View Article

  5. No Access

    Article

    Experimental realization of an optical second with strontium lattice clocks

    Progress in realizing the SI second had multiple technological impacts and enabled further constraint of theoretical models in fundamental physics. Caesium microwave fountains, realizing best the second accord...

    R. Le Targat, L. Lorini, Y. Le Coq, M. Zawada, J. Guéna… in Nature Communications (2013)

  6. No Access

    Article

    An ultra-stable referenced interrogation system in the deep ultraviolet for a mercury optical lattice clock

    We have developed an ultra-stable source in the deep ultraviolet, suitable to fulfil the interrogation requirements of a future fully-operational lattice clock based on neutral mercury. At the core of the syst...

    S. T. Dawkins, R. Chicireanu, M. Petersen, J. Millo, D. V. Magalhães… in Applied Physics B (2010)

  7. No Access

    Article

    An optical lattice clock with spin-polarized 87Sr atoms

    We present a new evaluation of an 87Sr optical lattice clock using spin polarized atoms. The frequency of the 1S0→3P0 clock transition is found to be 429 228 004 229 873.6 Hz with a fractional uncertainty of 2.6×...

    X. Baillard, M. Fouché, R. Le Targat, P. G. Westergaard… in The European Physical Journal D (2008)

  8. No Access

    Article

    Design of the cold atom PHARAO space clock and initial test results

    In this paper we describe the cold atom clock PHARAO, designed for microgravity operation. All elements of the PHARAO engineering model have been manufactured and delivered to CNES, the French space agency. We...

    Ph. Laurent, M. Abgrall, Ch. Jentsch, P. Lemonde, G. Santarelli… in Applied Physics B (2006)

  9. No Access

    Chapter

    Recent Experimental Tests of Special Relativity

    We review our recent Michelson-Morley (MM) and Kennedy-Thorndike (KT) experiment, which tests Lorentz invariance in the photon sector, and report first results of our ongoing atomic clock test of Lorentz invar...

    P. Wolf, S. Bize, M.E. Tobar, F. Chapelet, A. Clairon, A.N. Luiten… in Special Relativity (2006)

  10. No Access

    Chapter

    Cold Atom Clocks, Precision Oscillators and Fundamental Tests

    We describe two experimental tests of the Equivalence Principle that are based on frequency measurements between precision oscillators and/or highly accurate atomic frequency standards. Based on comparisons be...

    S. Bize, P. Wolf, M. Abgrall, L. Cacciapuoti… in Astrophysics, Clocks and Fundamental Const… (2004)

  11. No Access

    Chapter

    Precision Spectroscopy of Atomic Hydrogen and Variations of Fundamental Constants

    In 2003 we have measured the absolute frequency of the (1S, F=1, mF=± 1)→ (2S, F′=1, mF′=± 1) two-photon transition in atomic hydrogen. By comparison with the earlier measurement in 1999 we can set an upper limit...

    M. Fischer, N. Kolachevsky, M. Zimmermann… in Astrophysics, Clocks and Fundamental Const… (2004)