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A quantum stopwatch made of lasers and helium atoms tin measurement the clip that has passed with implicit accuracy, without counting seconds similar different clocks
Physics 24 October 2022By Leah Crane
Researchers utilized interference patterns from a laser to measurement time Shutterstock/luchschenF
A quantum ticker tin archer clip without counting it. This stopwatch-like method of observing quantum experiments is simply a deceptively elemental – and ever close – mode to measurement the transition of time.
Marta Berholts astatine Uppsala University successful Sweden and her colleagues based the timepiece connected a benignant of experimentation called a pump-probe experiment. In these tests, a “pump” laser pulse is sent into a unreality of atoms, raising them to higher vigor levels, and past another, little almighty “probe” pulse is …
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