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Oct 14, 2019

Quantum state of single electrons controlled by ‘surfing’ on sound waves

Posted by in categories: computing, particle physics, quantum physics

Researchers have successfully used sound waves to control quantum information in a single electron, a significant step towards efficient, robust quantum computers made from semiconductors.

The international team, including researchers from the University of Cambridge, sent high-frequency across a modified to direct the behaviour of a , with efficiencies in excess of 99 percent. The results are reported in the journal Nature Communications.

A quantum computer would be able to solve previously unsolvable computational problems by taking advantage of the strange behaviour of particles at the subatomic scale, and such as entanglement and superposition. However, precisely controlling the behaviour of quantum particles is a mammoth task.

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