New ‘Double Slit’ Experiment Skirts Uncertainty Principle

By Edwin Cartlidge of Nature magazine An international group of physicists has found a way of measuring both the position and the momentum of photons passing through the double-slit experiment, upending the idea that it is impossible to measure both properties in the lab at the same time. In the classic double-slit experiment, first done more than 200 years ago, light waves passing through two parallel slits create a characteristic pattern of light and dark patches on a screen positioned behind the slits.

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New ‘Double Slit’ Experiment Skirts Uncertainty Principle