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The qubits also exhibited a quality factor -- an index of how well a qubit stores energy -- of 2.57 x 105, a 100-fold improvement over previous niobium-based qubits and competitive with aluminum-based qubit quality factors.

"Wafer-scale manufacturable silicon carbide resonators in particular are known to have the best-in-class performance for quality factor," said Sunil Bhave, professor at the Elmore Family School of Electrical and Computer Engineering at Purdue and co-author of the paper.

Over the course of the season, though, the “quality” factor has come into question.

The main characteristic of an optical resonator is the quality factor — the ratio of the time over which the device can trap light to the period of the wave’s oscillation.

If the light waves destructively interfere to form BICs, the quality factor greatly increases.