A quantum system pictured from a single measurement setting.
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Moving beyond binary computation
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Quantum devices are becoming ever more complex and powerful. Researchers at the University of Innsbruck, in collaboration with the Johannes Kepler University Linz and the University of Technology Sydney have developed a practical approach for characterising quantum systems independent of the system size, using just a single measurement setting.
For the first time ever, researchers have been able to completely characterise an eight-qubit system in real-time using the new technique published in PRX Quantum.
Richard Küng from the Linz team emphasises their framework has the potential to enable real-time characterisations of large future devices. This marks a significant leap towards the scalability of quantum computers.
“All the building blocks developed in this work are readily applicable to other quantum computer architectures that have access to higher-dimensional information carriers."
Dr Martin Ringbauer, University of Innsbruck.
Members of the collaborative research team include A/Prof Christopher Ferrie (University of Technology Sydney), A/Prof Richard Küng (Johannes Kepler University Linz), and Dr Martin Ringbauer leading a team of physicists at the University of Innsbruck.