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A $15m computer that uses "quantum physics" effects to boost its speed is to be installed at a Nasa facility.
It will be shared by Google, Nasa, and other scientists, providing access to a machine said to be up to 3,600 times faster than conventional computers.
Unlike standard machines, the D-Wave Two processor appears to make use of an effect called quantum tunnelling.
This allows it to reach solutions to certain types of mathematical problems in fractions of a second.
Effectively, it can try all possible solutions at the same time and then select the best.
Google wants to use the facility at Nasa's Ames Research Center in California to find out how quantum computing might advance techniques of machine learning and artificial intelligence, including voice recognition.
Nasa will likely use the commercially available machine for scheduling problems and planning.
Quantum computing is based around exploiting the strange behaviour of matter at quantum scales.
Most work on this type of computing has focused on building quantum logic gates similar to the gate devices at the basis of conventional computing.
But physicists have repeatedly found that the problem with a gate-based approach is keeping the quantum bits, or qubits (the basic units of quantum information), in their quantum state.
"You get drop out… decoherence, where the qubits lapse into being simple 1s and 0s instead of the entangled quantum states you need. Errors creep in," says Prof Alan Woodward of Surrey University.
Full article
Is quantum computing possible?
It will be shared by Google, Nasa, and other scientists, providing access to a machine said to be up to 3,600 times faster than conventional computers.
Unlike standard machines, the D-Wave Two processor appears to make use of an effect called quantum tunnelling.
This allows it to reach solutions to certain types of mathematical problems in fractions of a second.
Effectively, it can try all possible solutions at the same time and then select the best.
Google wants to use the facility at Nasa's Ames Research Center in California to find out how quantum computing might advance techniques of machine learning and artificial intelligence, including voice recognition.
Nasa will likely use the commercially available machine for scheduling problems and planning.
Quantum computing is based around exploiting the strange behaviour of matter at quantum scales.
Most work on this type of computing has focused on building quantum logic gates similar to the gate devices at the basis of conventional computing.
But physicists have repeatedly found that the problem with a gate-based approach is keeping the quantum bits, or qubits (the basic units of quantum information), in their quantum state.
"You get drop out… decoherence, where the qubits lapse into being simple 1s and 0s instead of the entangled quantum states you need. Errors creep in," says Prof Alan Woodward of Surrey University.
Full article
Is quantum computing possible?
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