Robustness of quantum algorithms against coherent control errors

This repository contains the source code for the paper "Robustness of quantum algorithms against coherent control errors" by Julian Berberich, Daniel Fink and Christian Holm [arXiv:2303.00618].

The source code uses Python 3.10. All dependencies can be installed using the requirements.txt file.

In total, the repository consists of three directories, each corresponding to one of the three experiments from the sections 5, 6 and 7 of the paper.

Robustness of the Quantum Fourier Transform for different elementary gate sets

• Directory: elementary_gate_set

Within this experiment, we illustrate the practical potential of the proposed theoretical framework by solving the following problem: we study the robustness of different elementary gate set implementations of the 3-qubit QFT.

Validation on a quantum computer

• Directory: validation

Here, we validate our theoretical findings in an implementation on the ibm_nairobi quantum computer.

Variational quantum algorithms: robustness via regularization

• Directory: regularization

In this experiment, we verify that our theoretical framework can be used to successfully improve robustness of quantum circuits in the context of VQAs via regularization.