US researchers send quantum entangled signal over commercial fiber optic network without requiring any downtime, a major achievement.

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Put simply, they need to faithfully generate both left-handed and right-handed CP signals to avoid interference with another transmitted signal with the opposite handedness.

Put simply, they need to faithfully generate both left-handed and right-handed CP signals to avoid interference with another transmitted signal with the opposite handedness.

Using their approach, the teams successfully transmitted quantum-entangled signals between nodes at the University of Tennessee Chattanooga campus and two other EPB quantum network nodes, each ...