’Quantum negativity’ can power ultra-precise measurements

Scientists have found that a physical property called 'quantum negativity' can be used to take more precise measurements of everything from molecular distances to gravitational waves. We've shown that filtering quantum particles can condense the information of a million particles into one David Arvidsson-Shukur The researchers, from the University of Cambridge, Harvard and MIT, have shown that quantum particles can carry an unlimited amount of information about things they have interacted with. The results , reported , could enable far more precise measurements and power new technologies, such as super-precise microscopes and quantum computers. Metrology is the science of estimations and measurements. If you weighed yourself this morning, you've done metrology. In the same way as quantum computing is expected to revolutionise the way complicated calculations are done, quantum metrology, using the strange behaviour of subatomic particles, may revolutionise the way we measure things. We are used to dealing with probabilities that range from 0% (never happens) to 100% (always happens).