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Development of quantum sensors for previously impossible measurements

2024-04-14 22:17:50, Kosova & Bota CNA

Development of quantum sensors for previously impossible measurements

Researchers in California are developing highly sensitive sensors with the goal of detecting environmental changes as quickly as possible. As VOA correspondent Genia Dulot reports, scientists at the University of California, Los Angeles have focused attention on quantum sensors that are based on a phenomenon called 'quantum entanglement', when one photon 'knows the existence' of another photon. at long distances.

Researchers at the University of California, Los Angeles are developing next-generation quantum sensors. Professor Prineha Narang says the aim is to improve the accuracy of measuring what is happening in the air and water.

"It's about discovering those that can be early indicators of bigger problems, about making decisions that affect human health, when it's about changing air quality."

Sergio Carbajo, a researcher at the University of California, Los Angeles, has pointed two high-precision laser beams at a molecule to 'read' its quantum characteristics, or as he puts it, its unique fingerprint, which includes time. and location.

"We collect data from hundreds of them (molecules) and study the individual information. Summarizing all the collected data helps us to see the interconnection of developments".

Because of quantum entanglement, the phenomenon where one photon "knows" the existence of another, these sensors will be able to measure something happening at great distances.

Last summer, when New York City was engulfed in smoke from wildfires in Canada, researchers say sensors could have predicted the areas and how long the smog would last, even down to specific pollutants. Researcher Dennis Kim says this is just the beginning.

"Quantum sensors can detect changes in magnetic fields. For example, in the case of an earthquake, even in tectonic zones, with different types of earthquakes, where the sensitivity is high, we can predict or feel an earthquake before it happens."

Scientists predict that during the next ten years, these sensors will have even wider use in climate research./ VOA





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