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Revolutionary Superconducting Diode Promises Dissipationless Quantum Circuits

11/29/2025

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Summary

Story summary

Researchers have developed a quantized superconducting diode that conducts supercurrent in one direction using Cooper-paired states.
The device uses twisted high-temperature cuprate superconductors.
Non-reciprocal behavior is triggered by current pulses without an external magnetic field.
Under microwave irradiation above liquid-nitrogen temperature, the diode achieves perfect efficiency and shows resilience to input noise, enabling potential dissipationless quantum circuits.

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Story summary

Researchers have developed a quantized superconducting diode that conducts supercurrent in one direction using Cooper-paired states.
The device uses twisted high-temperature cuprate superconductors.
Non-reciprocal behavior is triggered by current pulses without an external magnetic field.
Under microwave irradiation above liquid-nitrogen temperature, the diode achieves perfect efficiency and shows resilience to input noise, enabling potential dissipationless quantum circuits.