Realization of a classical counterpart of a scalable design for adiabatic quantum computation

TL;DR

This paper demonstrates a classical analog of a scalable adiabatic quantum computing design using superconducting rings with controllable flux coupling, enabling tunable ferromagnetic and anti-ferromagnetic interactions.

Contribution

It introduces a classical implementation of a scalable adiabatic quantum computation design with a controllable coupler based on superconducting rings.

Findings

Successfully implemented a classical coupler with tunable flux coupling.

Achieved control of coupling from ferromagnetic to anti-ferromagnetic.

Demonstrated potential for classical simulation of quantum adiabatic processes.

Abstract

We implement a classical counterpart of a scalable design for adiabatic quantum computation. The key element of this design is a coupler providing controllable coupling between two bistable elements (in our case superconducting rings with a single Josephson junction playing the role of a classical counterpart of superconducting flux qubits) The coupler is also a superconducting ring with a single Josephson junction that operates in the non-hysteretic mode. The flux coupling between two bistable rings can be controlled by changing the magnetic flux through the coupler. Thereby, the coupling can be tuned from ferromagnetic trough zero to to anti-ferromagnetic.