Proposal for new experimental schemes to realize the Avogadro constant

  • Biraben F
  • Cadoret M
  • Clad P
 et al. 
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We propose two experimental schemes to determine and so to realize the Avogadro constant $N\_{A}$ at the level of 10$^{-7}$ or better with a watt balance experiment and a cold atom experiment measuring $h/m(X)$ (where $h$ is the Planck constant and $m(X)$ the mass of the atom $X$). We give some prospects about achievable uncertainties and we discuss the opportunity to test the existence of possible unknown correction factors for the Josephson effect and quantum Hall effect.

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  • F. Biraben

  • M. Cadoret

  • P. Clad

  • G. Genevs

  • P. Gournay

  • S. Guellati-Khlifa

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