Broadband Year 2002 Tech Library:
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Entanglement forms the basis for key elements in the burgeoning
field of quantum computing and communication. Whether quantum
computers will ever be built remains an open question, some
researchers say. But if such computers are built, achieving and
maintaining entanglement will be critical for everything from
processing data to transmitting it.
entanglement: Going large
Using a new method of generating entanglement, an entangled
state involving two macroscopic objects, each consisting of a
caesium gas sample containing about 1012 atoms, has now been
created. The entangled spin state can survive for 0.5
milliseconds, a long time in this context, bringing practical
applications of quantum memory and quantum teleportation a
Teleportation -- For Real
Scientists have made the hard part of teleportation happen ---
not on next week's episode of the new Star Trek series, but in
a real-life lab in Denmark.