[ExI] From Quantum Computing to a Quantum Internet—a Roadmap
possiblepaths2050 at gmail.com
Tue Oct 23 00:08:33 UTC 2018
"Quantum computers are making all the headlines these days, but quantum
communication technology may actually be closer to practical
implementation. In a bid to hasten its arrival, researchers have now mapped
out the path to a quantum internet.
The building blocks for these emerging technologies are more or less the
same. They both use qubits to encode information—the quantum equivalent to
computer bits that can simultaneously be both 1 and 0 thanks to the
phenomena of superposition. And they both rely on entanglement to
inextricably link the quantum states of these qubits so that acting on one
affects the other.
But while building quantum computers
of outperforming conventional ones on useful problems will require very
large networks of qubits, you only need a handful to build useful
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