Quantum computers could arrive sooner if we build them with traditional silicon technology

phys.org | 4/17/2019 | Staff
idkwatitis (Posted by) Level 3
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Quantum computers have the potential to revolutionize the way we solve hard computing problems, from creating advanced artificial intelligence to simulating chemical reactions in order to create the next generation of materials or drugs. But actually building such machines is very difficult because they involve exotic components and have to be kept in highly controlled environments. And the ones we have so far can't outperform traditional machines as yet.

But with a team of researchers from the UK and France, we have demonstrated that it may well be possible to build a quantum computer from conventional silicon-based electronic components. This could pave the way for large-scale manufacturing of quantum computers much sooner than might otherwise be possible.

Power - Computers - Laws - Nanoscale - Physics

The theoretical superior power of quantum computers derives from the laws of nanoscale or "quantum" physics. Unlike conventional computers, which store information in binary bits that can be either "0" or "1," quantum computers use quantum bits (or qubits) that could be in a combination of "0" and "1" at the same time. This is because quantum physics allows particles to be in different states or places simultaneously.

Quantum computer development is still in its infancy and several hardware technologies are available without any single one yet dominating. The most advanced prototypes are currently made from either a few dozen ions trapped in a vacuum chamber or superconducting circuits kept at near-absolute-zero temperature.

Challenge - Demonstrators - Qubit - Systems - Power

The crucial challenge is scaling up these small demonstrators into large interconnected qubit systems that will have enough computing power to perform useful tasks faster than classical supercomputers. To this end, another technology may eventually turn out to be more suitable. Strikingly enough, this could be the very same technology that today enables our digital society, the silicon transistor, the basic unit of information present in all microprocessors and memory chips.

There are two main...
(Excerpt) Read more at: phys.org
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