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Hai-Feng Yu

2 articles · 23 co-authors · latest: 2026-06-21

Magnons in a sphere squeezed to quantum limit

Quantum noise is like a balloon: you can squeeze it by redistributing uncertainty. Instead of light, scientists used magnons—waves in a magnetic material. A millimeter-sized sphere of a special crystal was coupled with a qubit and cooled until the waves inside almost disappeared. A special measureme
arXiv:2602.19671 · 2026-02-23

Robot Tuner for Quantum Processors

An autonomous AI apprentice masters the calibration of quantum chips in just a few hours by observing experts. It has already tuned 108 out of 112 qubits five times faster than a human and easily transfers skills to new processors.
arXiv:2606.22376 · 2026-06-21