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Mathematical breakthrough sets out rules for more effective teleportation
Posted:
Jan 17, 2013 8:04 PM
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Mathematical breakthrough sets out rules for more effective teleportation
By Staff Writers
Cambridge, UK (SPX)
Thursday, January 17, 2013
[Caption] Einstein famously loathed the theory of quantum
entanglement, dismissing it as "spooky action at a
distance". But entanglement has since been proven to be a
very real feature of our universe, and one that has
extraordinary potential to advance all manner of
scientific endeavor.
For the last ten years, theoretical physicists have shown
that the intense connections generated between particles
as established in the quantum law of 'entanglement' may
hold the key to eventual teleportation of quantum
information.
Now, for the first time, researchers have worked out how
entanglement could be 'recycled' to increase the
efficiency of these connections. Published in the journal
Physical Review Letters, the result could conceivably
take us a step closer to sci-fi style teleportation in
the future, although this research is purely theoretical
in nature.
The team have also devised a generalised form of
teleportation, which allows for a wide variety of
potential applications in quantum physics.
Once considered impossible, in 1993 a team of scientists
calculated that teleportation could work in principle
using quantum laws. Quantum teleportation harnesses the
'entanglement' law to transmit particle-sized bites of
information across potentially vast distances in an
instant.
Entanglement involves a pair of quantum particles such as
electrons or protons that are intrinsically bound
together, retaining synchronisation between the two that
holds whether the particles are next to each other or on
opposing sides of a galaxy. Through this connection,
quantum bits of information - qubits - can be relayed
using only traditional forms of classical communication.
Previous teleportation protocols, have fallen into one of
two camps, those that could only send scrambled
information requiring correction by the receiver, or more
recently, "port-based" teleportation that doesn't require
a correction, but needed an impractical amount of
entanglement - each object sent would destroy the
entangled state.
Now, physicists from Cambridge, University College
London, and the University of Gdansk have developed a
protocol to provide an optimal solution in which the
entangled state is 'recycled', so that the gateway
between particles holds for the teleportation of multiple
objects.
Continues at:
http://www.space-travel.com/reports/Mathematical_breakthrough_sets_out_rules_for_more_effective_teleportation_999.html
Jai Maharaj, Jyotishi
Om Shanti
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