New Limits on Coupling of Fundamental Constants to Gravity UsingSr<mml:mprescripts/><mml:none/>87Optical Lattice Clocks

2008/01/31 by Sebastian Blatt, S. Blatt, Andrew D. Ludlow +25 · 8 citations
Chemistry · Medicine · Physics and Astronomy · #Advanced Frequency and Time Standards #Analytical Chemistry (journal) #Atomic and Subatomic Physics Research #Atomic clock #Atomic physics #Cardiovascular Syncope and Autonomic Disorders #Chemistry #Coupling (piping) #Coupling constant #Gravitation #Maser #Materials science #Optics #Particle physics #Physics #Quantum mechanics #physics.atom-ph #physics.gen-ph

paper · pdf · doi:10.1103/physrevlett.100.140801

published as Phys.Rev.Lett.100:140801,2008 · Published version. 4 pages, 4 figures

openalex publication_date 2008/04/09 · arxiv created 2008/04/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The ¹S₀-³P₀ clock transition frequency \ensuremathν_Sr in neutral ⁸⁷Sr has been measured relative to the Cs standard by three independent laboratories in Boulder, Paris, and Tokyo over the last three years. The agreement on the 1\ifmmode×\else\texttimes\fi10^\ensuremath-15 level makes \ensuremathν_Sr the best agreed-upon optical atomic frequency. We combine periodic variations in the ⁸⁷Sr clock frequency with ¹⁹⁹Hg⁺ and H-maser data to test local position invariance by obtaining the strongest limits to date on gravitational-coupling coefficients for the fine-structure constant \ensuremathα, electron-proton mass ratio \ensuremathμ, and light quark mass. Furthermore, after ¹⁹⁹Hg⁺, ¹⁷¹Yb⁺, and H, we add ⁸⁷Sr as the fourth optical atomic clock species to enhance constraints on yearly drifts of \ensuremathα and \ensuremathμ.

Citations

• Sr<mml:mprescripts/><mml:none/>87Lattice Clock with Inaccuracy below10−15
• Dependence of nuclear magnetic moments on quark masses and limits on temporal variation of fundamental constants from atomic clock experiments
• New experimental limit on the validity of local position invariance
• Limit on the Present Temporal Variation of the Fine Structure Constant
• Limit on the Temporal Variation of the Fine-Structure Constant Using Atomic Dysprosium

Cited by

• Eötvös Bounds on Couplings of Fundamental Parameters to Gravity
• New bounds on dark matter coupling from a global network of optical atomic clocks
• AN OBSERVATIONAL DETERMINATION OF THE PROTON TO ELECTRON MASS RATIO IN THE EARLY UNIVERSE
• Prospects for application of ultracoldSr2molecules in precision measurements
• Magnetically Induced Optical Transparency on a Forbidden Transition in Strontium for Cavity-Enhanced Spectroscopy
• Strontium optical lattice clocks for practical realization of the metre and secondary representation of the second
• Spin Squeezing in a Rydberg Lattice Clock
• Infrared dynamic polarizability of HD+ rovibrational states

Related

• A null test of General Relativity: New limits on Local Position Invariance and the variation of fundamental constants
• Recent variations of fundamental parameters and their implications for gravitation
• Frequency Ratio of ¹⁹⁹Hg and ⁸⁷Sr Optical Lattice Clocks beyond the SI Limit
• Laboratory Limits on Temporal Variations of Fundamental Constants: An Update
• The Constancy of the Constants of Nature: Updates