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Scientists Achieve 'Transformational' Breakthrough in Scaling Quantum Computers

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The Gooseberry chip (red) next to a qubit test chip (blue).

A new kind of cryogenic chip capable of functioning at temperatures approaching absolute zero plays the groundwork for what could be a revolution in quantum computing.

Credit: Microsoft

The Gooseberry cryogenic computer chip engineered by scientists at Australia's University of Sydney (USYD) and Microsoft's Quantum Laboratory can operate at ‘millikelvin’ temperatures approaching absolute zero.

Gooseberry works inside a super-cold environment to interface with quantum bits (qubits), passing signals from them to a secondary core that sits in another cold container immersed in liquid helium.

This removes excess wiring and surplus heat, potentially eliminating qubit bottlenecks in quantum computing.

USYD's David Reilly said, "This is the first time a mixed-signal chip with 100,000 transistors has operated at 0.1 kelvin, [the equivalent to] -459.49 degrees Fahrenheit, or -273.05 degrees Celsius."

Gooseberry is expected to control thousands of qubits, a step which Andrew White at the Australian Research Council Center of Excellence for Engineered Quantum Systems said will be "transformational" for quantum computing.

From ScienceAlert
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Abstracts Copyright © 2021 SmithBucklin, Washington, DC, USA


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