Reconfigurable and cascaded logic gates using dual-input multilayered heater nanocryotrons

TL;DR

This paper introduces a dual-input multilayered heater nanocryotron (hTron) that enables reconfigurable logic and scalable superconducting computing at cryogenic temperatures.

Contribution

It presents a novel device that combines multi-input functionality with reconfigurable logic, advancing the development of complex superconducting computational architectures.

Findings

Demonstrated reconfigurable logic capability within a single device.

Showed potential for devices to drive each other and be integrated on a larger scale.

Reduced circuit complexity by enabling dynamic switching without extra components.

Abstract

Superconducting electronics have emerged as a promising platform for advanced information processing, offering unique opportunities for on chip computation and signal manipulation at cryogenic temperatures. These devices hold particular potential in applications ranging from quantum computing to high sensitivity magnetic sensing, where integrated logic and scalable circuit architectures are essential for performing complex computational and signal-processing tasks. In this work, we present a dual-input multilayered heater nanocryotron (hTron) that introduces both multi input functionality and reconfigurable logic capability within a single device. This capability represents a step forward toward realizing more complex computational architectures. In addition, we demonstrate that these devices can, in principle, drive one another and potentially be integrated on a larger scale. Furthermore, the inherent reconfigurability of the demonstrated device allows for dynamic switching between logic operations without requiring additional components which reduces circuit area and simplifies cryogenic and biasing requirements, making the design highly suitable for scalable superconducting computing systems.