A nonlinear superinductor in a deep-submicrometre integrated circuit

AI Insight

Researchers have successfully demonstrated a nonlinear superinductor integrated into a deep-submicrometre silicon chip, achieving inductance values orders of magnitude higher than conventional inductors in the same footprint. The device exploits the kinetic inductance of superconducting nanowires with deliberately introduced nonlinearity, enabling compact quantum circuit components. This integration approach overcomes the traditional challenge of creating large inductances in miniaturized circuits while maintaining compatibility with standard semiconductor fabrication processes.

Why it matters

This advancement enables more compact and scalable quantum computing circuits and superconducting electronics by eliminating the need for large physical inductors. The compatibility with existing chip manufacturing infrastructure could accelerate the development of practical quantum processors and ultra-sensitive detectors.