This allows us to determine a value for Boltzmann’s constant with a precision of 6 p.p.m., and an uncertainty of 71 p.p.m. If the natural lineshape of the transition is a Lorentzian ...

The measured spectra revealed a squared Lorentzian lineshape -- the formerly theoretical flat top. Light sent in a counterclockwise direction only went through the resonator once, since it was not ...

The absorption lineshape then appears as squared Lorentzian (flat top). When light enters the resonator counterclockwise (left), some light is absorbed, but most exits the system. Since it does ...

The measured spectra revealed a squared Lorentzian lineshape — the formerly theoretical flat top. Light sent in a counterclockwise direction only went through the resonator once, since it was ...