The clock will lead to a more precise definition of a second and could even lead to the discovery of new underground mineral deposits.
Researchers at JILA, a US research institute, have developed a new light-based atomic clock that is so precise that it can measure the slightest effects, as predicted by Einstein’s theory of general relativity. The clock will lead to a more precise definition of a second and could even lead to the discovery of new underground mineral deposits, an organizational press release said.
Light-based or optical atomic clocks could potentially lose a second in 30 billion years compared to microwave-based clocks. However, to reach this accuracy, the clocks need to be high-precision, i.e., able to measure tiny fractions of the second. Instead of using a beam of visible light, the researchers at JILA used a web of light, also known as an optical lattice, to measure tens of thousands of atoms simultaneously.
“It’s pushing the boundaries of what’s possible with timekeeping,” said Jun Ye, a physicist at JILA and NIST. However, the gains of the clock design go beyond these measurements and into the quantum realm.
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