Add Yahoo as a preferred source to see more of our stories on Google. Controlled outdoor experiments could also include injecting aerosols into the atmosphere - Vlad Georgescu/Moment RF Experiments to ...
It has been known since the 1960s that the quantum statistical properties of light have a role in optical processes 3. For example, when more than one photon is required to ionize an atom, random ...
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'Negative time' confirmed: Mind-bending experiment shows light can exit a cloud of atoms before it enters, thanks to quantum physics quirk
A new experiment confirms that photons passing through a cloud of atoms can spend a negative amount of time there, and the atoms themselves are the ones saying so.
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