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Thursday, July 14, 2022

Quantum Computer Could Catch Its Own Errors

 Don't understand fully,  worth a look, complex.  

Quantum Computer Could Catch Its Own Errors

New Scientist, Karmela Padavic-Callaghan, May 25, 2022

A team of Austrian and German scientists has constructed a 16-quantum bit (qubit) computer that runs error-free calculations. The researchers developed a series of quantum gates to serve as components of more sophisticated computations, which prevent errors within even the most complex. They corralled 14 calcium ions with electric fields, forming two logical qubits composed of seven entangled ions each; two additional qubits flagged erroneous computations requiring correction. "With this universal set of gates, you can approximate every calculation that you can possibly want to do with a quantum computer," said Lukas Postler of Austria’s University of Innsbruck. The researchers found each logic gate in the system that works reduces the number of errors. ....' 

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