This repository contains the source code for the VFK algorithm introduced in ArXiv:2204.03454
The method has been implemented both in Python and Julia, using different libraries for quantum computing. We strongly suggest to use Julia implementations.
Every directory contains methods to construct the Feynman-Kitaev Hamiltonian for the Transverse Field Ising Model and to find the ground state variationally using the VQE.
We implemented the method in Python using the Qiskit framework.
At the moment, the Qiskit version required is
| qiskit | 0.32.1 |
|---|---|
| qiskit-aer | 0.9.1 |
| qiskit-aqua | 0.9.5 |
| qiskit-ignis | 0.6.0 |
| qiskit-ibmq-provider | 0.18.1 |
| qiskit-ignis | 0.6.0 |
| qiskit-nature | 0.2.2 |
| qiskit-terra | 0.18.3 |
We implented the method in Julia using the Yao.jl package.
The corresponding directory contains a Project.toml and a Manifest.toml file in order to reproduce the Julia project.
We will include an implentation of the VFK method in Julia using the PastaQ.jl package.