Quantum Campus shares the latest in quantum science and technology. Read by more than 2,000 researchers, we publish on Fridays and are always looking for news from across the country. Want to see your work featured? Submit your ideas to the editor.

A team from the University of Chicago, Harvard, Stony Brook University, and Quantinuum demonstrated a universal gate set using non-Abelian anyons, showing that these quasiparticles may offer a new means of general-purpose quantum computing. On Quantinuum’s H2 trapped-ion processor, the team paired non-Abelian anyons with S3 symmetry to form what are known as "topological qutrits" that have three levels of quantum information. They then braided and fused these pairs in different combinations to perform all the operations necessary for the universal gate set.

An anyon-based system would be less error-prone, according to the team, and “fault-tolerant computations can in principle be done without resorting to magic state distillation or cultivation, which are the most expensive operations in standard quantum error correction codes.”

This work was published in Nature.

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UCLA engineers developed a nanoscale temperature-mapping technique, coaxing phonons to carry heat in focused, ray-like paths rather than spreading uniformly in all directions. The study was completed at room temperature using boron arsenide over distances of one micrometer, and the team showed that heat-flow patterns change predictably depending on the boron arsenide’s crystal orientation.

Principle investigator Yongjie Hu said the research creates opportunities to fine-tune how phonons interact with electrons, with potential applications in quantum information and sensing technologies.

This work was published in Nature Physics.

Computer scientists from Worcester Polytechnic Institute will launch a three-year program to train high school teachers across the country to teach quantum information science and cybersecurity to their students. The program is supported by the National Science Foundation.

Read the announcement from WPI.

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