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New Theory Enhances Quantum Entanglement

Category: Science & Technology
Posted: January 17, 2013 12:11PM
Author: Guest_Jim_*

Quantum entanglement is one of the phenomena that is completely real but is so weird, that many people would probably argue it is not possible. Entangled particles share properties in such a way that measuring one entangled particle supplies you with information about the other particle it is entangled with, no matter how separated these particles are. Now researchers at the University of Cambridge have found a new way to exploit this phenomenon to teleport information more effectively than before.

Previous means to teleport information would require either require the information be corrected for errors or an inordinate amount of entanglement. This new method however is able to recycle the entanglement, making it more efficient and powerful. Instead of being limited to sending a single quantum bit, or qubit, at a time, it should now be possible to design a system that can transmit multiple qubits at once. Whether a serial or parallel teleportation protocol is used though, the entanglement degrades as more qubits are transmitted.

Unfortunately the researchers' work is purely theoretical at this point, so it may be some time before we see it put to use for communication or quantum computing. However, this theory should make such systems considerably more efficient.



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