Physicists have found a simple way to stop quantum computers from slipping out of tune. By adding a single diagnostic check before running calculations, an international research team cut processing errors by 54 percent.
The technique, published in Applied Physics Reviews, tackles one of the biggest bottlenecks in modern quantum engineering: the extreme physical fragility of quantum bits, or qubits.
Unlike conventional computer chips that process data as standard binary switches, quantum processors rely on physical circuits governed by quantum physics. But in a new study, the team this time tested a superconducting circuit on a chip and steered the system using ultra-precise microwave pulses.
The experiments took place at the Israeli Quantum Computing Center, with researcher Fabrizio Berritta operating the hardware remotely from Massachusetts Institute of Technology (MIT). In tests run without adjustments, the team observed that qubit operations suffered from significant performance fluctuations over time.
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