Complementary Quantum Logic Family Using Josephson Junctions and Quantum Phase-Slip Junctions

Abstract

In this article, we explore a new set of circuits, that incorporate both single-flux-quantum and quantized charge-based complementary quantum logic circuits. Circuits that convert single-flux-quantum voltage pulses to quantized charge pulses and vice versa are introduced that lead to circuits that simplify logic and integration operations of individual flux and charge based logic circuits. These include fan-out circuits that enable single flux input to several charge outputs and control gate circuit with charge input controlling flux output. The operation of these circuits is demonstrated in simulations using WRSPICE. An XOR gate implementation is presented as an example to illustrate the operation of these circuits. The developed complementary quantum logic circuits show promise for higher power efficiency and simpler design in the form of fewer junctions for a given logic implementation, leading to the possibility of higher integration density.

arXiv comment6 pages, 12 figures

References in corpus (8)

• Ultra-Low-Power Superconductor Logic
• Coherent quantum phase slip
• Superconductor Digital Electronics: Scalability and Energy Efficiency Issues
• Phase-slip flux qubits
• NbSi nanowire quantum-phase-slip circuits: dc supercurrent blockade, microwave measurements and thermal analysis
• Coulomb Blockade due to Quantum Phase-Slips Illustrated with Devices
• Superconducting Neuromorphic Computing Using Quantum Phase-Slip Junctions
• Charge-based superconducting digital logic family using quantum phase-slip junctions