repeater

To take advantage of quantum teleportation, scientists are designing quantum repeaters that can renew quantum information before it disappears in the fiber.

She describes being a “serial pieces repeater,” choosing to mix and match rather than follow trends.

Keyless repeaters and signal amplifiers scramble the signal from remote key fobs inside people's homes, enabling criminals to unlock cars.

A quantum network cannot use standard optical-fiber signal repeaters because copying of arbitrary quantum information is impossible -- making the information secure, but also very hard to transport over long distances.

The report says a repeater enabled radio communications to stay up despite cell towers and fiber-optic cable damage taking down the cellular network, but they were overwhelmed due to “a variety” of unspecified reasons.