He realised this effect could be harnessed to very accurately determining the precise colour at which the atoms did not interact at all with the laser and the oscillation remained unchanged—in other words effectively becoming invisible.
"That's so small that I can't think of any phenomenon to compare it to—it's so far off the end of the scale," Mr Henson said. Previous calculations using QED had less uncertainty than the experiments, but with the new experimental technique improving the accuracy by a factor of 20, the theoreticians had to rise to the challenge and improve their calculations.
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