Quantum Motion unveils 9-second silicon qubit

Quantum Motion unveils 9-second silicon qubit John Morton, Professor of Nanoelectronics at UCL and co-founder of Quantum Motion.

Quantum Motion, an UK-based startup, has announced a quantum computing breakthrough, demonstrating that a stable qubit can be created on a standard silicon chip.

The startup, which has a team of 20 people at the moment, raised £8m Series A funding last year led by Dutch VC INKEF Capital, with Octopus Ventures coming in as a new investor, and existing funders IP Group, Oxford Sciences Innovation, and Parkwalk Advisors taking part. 

By cooling the chip down to a temperature just above absolute zero (−273°C), and by using tiny transistors, the Quantum Motion team were able to isolate a single electron and measure its quantum state for an astounding nine seconds.

Dilution fridge at UCL. Credit: A. Abrusci / UCL
Dilution fridge at UCL. Credit: A. Abrusci / UCL

Intel, which is testing a similar silicon-based approach in collaboration with Delft-based startup QuTech, talks about times of 1 second. (Sifted)

The discovery has been published in journal PRX Quantum.

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