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Monday, May 30, 2022

Large Scale Quantum Computing

 Thinking larger scale, how soon?


Approach May Help Clear Hurdle to Large-Scale Quantum Computing  By Harvard Gazette  May 4, 2022

Researchers at Harvard University, the Massachusetts Institute of Technology, QuEra Computing, and Austria's University of Innsbruck have developed an approach for shuffling qubits during the computation process while maintaining their quantum state, resulting in a programmable, error-correcting quantum computer operating at 24 qubits.

The process involves an initial pairing of qubits, the creation of a quantum gate that entangles the pairs and stores the information in hyperfine qubits, moving these qubits into new pairs with other atoms in the system to entangle them as well, and repeating the steps to generate different quantum circuits to perform different algorithms.

The atoms ultimately become connected in a "cluster state" and act as backups for each other in the event of an error, according to the researchers.

From Harvard Gazette .... 

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