Scientists at Griffith University have made a breakthrough in measurement precision, achieving a result that has been a major goal of the scientific community for the last 30 years.
Published in Nature Photonics, researchers from Griffith University’s Centre of Quantum Dynamics have demonstrated that certain optical measurements using photons – or single particles of light – can be performed with a higher level of precision than could ever be achieved without quantum techniques.
“Over the centuries advancements in how precisely we can measure things have consistently resulted in new breakthroughs in science and technology. So, we hope our result will be important for the future,” said Professor Geoff Pryde, the team leader.
Theoretical physicists have predicted since the 1980s that certain pairs of light beams containing a specific number of photons can be used to extract the maximum amount of measurement information per particle. In this technique, the photons are entangled (or connected
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