A single silicon carbide transistor built by HKU researchers reproduced neuron-like spiking at 10 millikelvin, demonstrating a programmable neuromorphic chip that works near absolute zero.
The design targets quantum processors, where ultra-cold, energy-efficient control circuits could cut heat generation and power use—two major constraints in quantum computing systems.
HKU said multiple artificial neurons can be linked for local processing, opening uses in quantum error correction and real-time quantum control.
The cryogenic platform could also support autonomous electronics in extreme cold, including deep-space missions, the Moon's surface and remote parts of the solar system.