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Quantum Paradox Experiment May Lead to More Accurate Clocks and Sensors

19 Oct 2019, 22:09 UTC
Quantum Paradox Experiment May Lead to More Accurate Clocks and Sensors
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More accurate clocks and sensors may result from a recently proposed experiment, linking an Einstein-devised paradox to quantum mechanics. University of Queensland physicist Dr Magdalena Zych said the international collaboration aimed to test Einstein’s twin paradox using quantum particles in a ‘superposition’ state.“The twin paradox is one of the most counterintuitive predictions of relativity theory,” Dr Zych said.“It says that time can pass at different speeds for people at different distances to an enormous mass or travelling with different velocities.“For example, relative to a reference clock far from any massive object, a clock closer to a mass or moving at high speed will tick slower.“This creates a ‘twin paradox’, where one of a pair of twins departs on a fast-speed journey while the other stays behind.“When the twins reunite, the travelling twin would be much younger, as different amounts of time have passed for each of them.“It’s a mind-blowing effect – featured in popular movies like Interstellar – but it’s also been verified by real world experiments, and is even taken into consideration in order for everyday GPS technology to work.”The team included researchers from the University of Ulm and Leibniz University Hannover and found how one could use advanced ...

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