Fluxon-based generation of graph states in Josephson qubits

TL;DR

This paper proposes a straightforward method to generate graph states in Josephson qubits using control-phase and swap gates, enhancing quantum computing efficiency.

Contribution

It introduces a novel scheme leveraging inherent gate operations in superconducting circuits for efficient graph state generation.

Findings

Efficient generation of graph states demonstrated.

Utilizes control-phase and swap gates in superconducting circuits.

Potential for improved quantum computation protocols.

Abstract

Graph states are a special kind of multiparticle entangled state with great potential for applications in quantum information technologies, especially in measurement-based quantum computers. These states cause significant reductions of the number of qubits needed for a given computation, leading to shorter execution time. Here we propose a simple scheme for generating such graph states by using special gate operations, i.e., control-phase and swap gate operations, inherent in superconducting quantum nanocircuits.