most citedFirst direct determination of the Boltzmann constant by an optical method

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physics.atom-ph2009★ 42 cited

Determination of the Boltzmann constant by laser spectroscopy as a basis for future measurements of the thermodynamic temperature

Cyril Lemarchand, Khelifa Djerroud, Benoît Darquié +6

In this paper, we present the latest results on the measurement of the Boltzmann constant kB, by laser spectroscopy of ammonia at 10 ?m. The Doppler absorption profile of a ro-vibr…