“Winner,” he said. “Not of this competition. But of the next decade.”
She lowered her voice. “The ceramic’s grain boundary contains trapped argon from the sintering process. When the interferometer laser hits it, the argon ions oscillate. The wobble isn’t a defect. It’s a measurement of quantum shot noise—at room temperature.” cype 2016
The hall held its breath.
Aachen, Germany Date: September 14, 2016 “Winner,” he said
“Now,” Elena said, “I write a new definition of the meter. One that includes uncertainty as a feature, not a bug.” It’s a measurement of quantum shot noise—at room
Elena, a twenty-seven-year-old PhD candidate from ETH Zurich, had submitted a last-minute prototype: a self-calibrating ceramic gauge block that could compensate for thermal expansion at the atomic lattice level. Her theoretical paper was solid. Her physical prototype, however, had a ghost.