Quantum mechanics

Quantum computer

Quantum channel

Teleportation

Photon

Physics

Superdense coding

Quantum network

Quantum

Quantum teleportation

Quantum information

Nature

Quantum teleportation -- the transmission and reconstruction over arbitrary distances of the state of a quantum system -- is demonstrated experimentally. During teleportation, an initial photon which carries the polarization that is to be transferred and one of a pair of entangled photons are subjected to a measurement such that the second photon of the entangled pair acquires the polarization of the initial photon. This latter photon can be arbitrarily far away from the initial one. Quantum teleportation will be a critical ingredient for quantum computation networks.

Experimental quantum teleportation