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China creates atomic clock that will run error-free for 7.2 billion years | Using strontium and ultra-stable lasers, the researchers have built an optical clock, the second of its kind in the world.
Radiowave clocks currently used for precise timekeeping have their shortcomings and optical clocks can help overcome them.
Researchers at the University of Science and Technology of China have allegedly built an optical clock with stability and uncertainty of under five quintillionths. Scientists are confident they can develop more accurate global positioning systems (GPS) and quantum key distribution using optical clocks. However, the most precise atomic clock is hosted at the University of Colorado in Boulder and is also stable in its operation.
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