Topologically protected $\pi$-ring qubits

TL;DR

This paper presents a quasiclassical approach to design large arrays of $$-ring qubits with complex energy landscapes, aiding the development of superconducting quantum computers and networks.

Contribution

It introduces a novel quasiclassical method for analyzing and designing connected vortex qubit arrays with $$ junctions, enhancing understanding of their energy landscapes.

Findings

Accurate quasiclassical modeling of $$-ring qubit arrays.

Design principles for large superconducting qubit arrays.

Potential applications in quantum computing and networks.

Abstract

The $\pi$-ring qubit array is described using quasiclassical approaches that are shown to be accurate and give clarity to the complex energy landscape of connected vortex qubits. Using the techniques, large arrays of Josephson junction systems can be designed, including phase shift devices. Herein, connected arrays of loops containing $\pi$ junctions are described. These techniques are useful for design of quantum computers based on superconducting technologies, hybrid quantum technologies and quantum networks.