Friday, January 30, 2009

Quantum Teleportation - A Mark Merlin Mystery!

Teleportation works because of a remarkable quantum phenomenon called entanglement which only occurs on the atomic and subatomic scale. Once two objects are put in an entangled state, their properties are inextricably entwined. Although those properties are inherently unknowable until a measurement is made, measuring either one of the objects instantly determines the characteristics of the other, no matter how far apart they are.

Abstract: Quantum teleportation is the faithful transfer of quantum states between systems, relying on the prior establishment of entanglement and using only classical communication during the transmission.

We report teleportation of quantum information between atomic quantum memories separated by about 1 meter. A quantum bit stored in a single trapped ytterbium ion (Yb+) is teleported to a second Yb+ atom with an average fidelity of 90% over a replete set of states.

The teleportation protocol is based on the heralded entanglement of the atoms through interference and detection of photons emitted from each atom and guided through optical fibers. This scheme may be used for scalable quantum computation and quantum communication.

It’s all explained here
Ref: Quantum Teleportation Between Distant Matter Qubits. 2009. S. Olmschenk. et al. Science 323: 486-489.

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House of Secrets # 42 (March, 1962) © DC Comics
Pencils: Mort Meskin; Inks: George Roussos