Communications of the ACM
Quantum Errors Made More Tolerable
Prolonged coherence times are important, as they translate directly into more time for executing quantum computations.
Credit: D-PHYS Home group/ETH Zurich
Physicists at the Swiss Federal Institute of Technology, Zurich (ETH Zurich) have demonstrated the ability to extend the longevity of quantum states and expand tolerance of quantum errors, which are crucial to future quantum computing.
The method accounts for limitations of physically realistic devices, and is relatively easy to deploy compared to other proposed error-correction schemes.
The researchers employed a platform that encodes quantum information within the mechanical oscillator motion of a single trapped ion, in effect optimizing the generation and control of logical states of Gottesman–Kitaev–Preskill code for finite-energy states.
The approach supported efficient correction of unwanted displacements in the oscillator's motion, and lengthened coherence time threefold.
From ETH Zurich (Switzerland)
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Abstracts Copyright © 2022 SmithBucklin, Washington, DC, USA
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