Science

Long live qubit

Once integrated on chips, nanofabricated quantumbits hold the promise of ultra-fast quantum computing. Unfortunately however, these building blocks of future quantum computers are very unstable.

Researchers from the Kavli Institute of Nanoscience together with colleagues from the University of Wisconsin succeeded in extending the lifespan of the qubit spin in silicium a hundred fold, from ten nanoseconds to one microsecond using micromagnets. They published their findings earlier this month in Nature Nanotechnology.

E.Kawakami, et. al., Electrical control of a long-lived spin qubit in a Si/SiGe quantum dot, Nature Nanotechnology, 10th of August.

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