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Quantum devices use the quirky behaviour of quantum particles to perform tasks that go beyond what 'classical' machines can do, including quantum computing, simulation, sensing, communication and metrology.

Light measurement devices called optical frequency combs have revolutionized metrology, spectroscopy, atomic clocks, and other applications.

The metrology department in its daily weather forecast has continued to predict moderate to heavy rainfall in most parts of the country.

This collaboration is now more broadly developing computational metrology, in which the output of a measurement is a predictive model rather than just a parameter.

“Our proposal,” Yunger Halpern restated with finality, “is how you can enhance metrology with quantum advantage not realizable through classical means.”