Breakthrough offers new route to large-scale quantum computing

See on Scoop.itTracking the Future

In a key step toward creating a working quantum computer, Princeton researchers have developed a method that may allow the quick and reliable transfer of quantum information throughout a computing device.
The finding, by a team led by Princeton physicist Jason Petta, could eventually allow engineers to build quantum computers consisting of millions of quantum bits, or qubits. So far, quantum researchers have only been able to manipulate small numbers of qubits, not enough for a practical machine.
“The whole game at this point in quantum computing is trying to build a larger system,” said Andrew Houck, an assistant professor of electrical engineering who is part of the research team.
To make the transfer, Petta’s team used a stream of microwave photons to analyze a pair of electrons trapped in a tiny cage called a quantum dot. The “spin state” of the electrons — information about how they are spinning — serves as the qubit, a basic unit of information. The microwave stream allows the scientists to read that information.

See on www.sciencedaily.com

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