Two-way communication is possible with a single quantum particle
Studies show two people can simultaneously swap information using only one photon
![photon](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/02/022118_EC_onephoton_feat.jpg?fit=860%2C460&ssl=1)
DOUBLE DUTY Thanks to the phenomenon of quantum superposition, a single particle of light can send information in two directions at once, scientists report.
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