Ultracold clocks could reveal how quantum physics alters time

The world’s best clocks may be sensitive to an odd mix of quantum and relativistic effects that would stretch time and test the boundaries of physics

​The world’s best clocks may be sensitive to an odd mix of quantum and relativistic effects that would stretch time and test the boundaries of physics The world’s best clocks may be sensitive to an odd mix of quantum and relativistic effects that would stretch time and test the boundaries of physics