HKU Scientists Build 10mK Neuromorphic Chip for Quantum Computers and Deep Space Missions
Updated
Updated · ScienceDaily · Jul 3
HKU Scientists Build 10mK Neuromorphic Chip for Quantum Computers and Deep Space Missions
2 articles · Updated · ScienceDaily · Jul 3
Summary
A single silicon carbide transistor reproduced neuron-like electrical spikes at temperatures as low as 10 millikelvin, giving HKU researchers a programmable neuromorphic platform for cryogenic computing.
The design targets a core quantum-computing bottleneck: today’s control electronics generate too much heat and use too much power to sit close to qubits, forcing bulky wiring and complicating scale-up.
Below 2 kelvin, the SiC MOSFETs showed a strong S-shaped negative differential resistance driven by electron-donor impact ionization, which the team said is stable, reproducible and far more energy-efficient than conventional electronics.
The researchers also cascaded the artificial neurons into larger networks, a step that could support local cryogenic processing, quantum error correction and real-time quantum control.
Because silicon carbide is already manufactured at scale on 300-mm wafers for industries such as EVs and power grids, the approach could be adapted for both quantum hardware and ultra-cold deep-space systems.
This brain-inspired chip works near absolute zero. Will it finally unlock the true power of quantum computers?
A chip that thrives in the cold could power AI in deep space. What secrets of the cosmos will it uncover?
10 Millikelvin SiC Neuromorphic Chip: A Game-Changer for Quantum Control and Deep-Space Missions
Overview
Researchers at the University of Hong Kong have developed a groundbreaking neuromorphic chip that operates at an ultracold temperature of 10 millikelvin. This chip uses Silicon Carbide (SiC) MOSFETs, which, when cooled below 2 Kelvin, show a unique 'S-shape' negative differential resistance (NDR) behavior driven by electron-donor impact ionization. Because this mechanism is inherent to the atomic structure of SiC, the chip is exceptionally stable and reliable. This innovation addresses major challenges in quantum computing and enables robust electronics for deep-space exploration, marking a significant step forward in both fields.