© 2021 EPFL - A cryogenic controller chip opens the door to solving the 'wiring bottleneck' and subsequently to realize a fully integrated, scalable quantum computer. A research from QuTech in the Netherlands, from Intel Corp and from EPFL. A specially designed chip to control qubits can operate at extremely low temperatures, and opens the door to solving the 'wiring bottleneck'. Researchers and engineers from QuTech in the Netherlands and from Intel Corp., jointly designed and tested the cryogenic chip and made an important step towards a scalable quantum computer. Their results are published in the scientific journal Nature. Each basic unit of a quantum computer, a qubit, is typically addressed individually by a single wire. 'This stands in the way of a scalable quantum computer, since millions of qubits would require millions of wires' explains lead investigator Lieven Vandersypen from QuTech.
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