How Horizon Quantum Computing Plans to Democratize Quantum Software Development

Background

Joe Fitzsimons, a physicist with over 15 years of experience in quantum computing and computational complexity theory, left his tenured academic position in 2018 to found Horizon Quantum Computing. He previously led the quantum information and theory group at Singapore University of Technology and Design and served as a tenured associate professor and chief researcher at the university’s quantum technology centre.

Fitzsimons holds a BSc in theoretical physics from University College Dublin and a PhD in philosophy from Oxford University, and has published high‑impact papers in theoretical computer science and physics.

Mission and Vision

Horizon’s mission is to "democratize quantum computing" by making the development of quantum software as simple as possible, allowing any programmer to use quantum computers. The goal is to bridge the gap between quantum hardware and traditional software development.

According to Fitzsimons, current quantum software development is akin to programming in the 1940s or building ARPANet sites in the 1960s – it is still early, and Horizon aims to provide tools that let developers write in familiar languages such as C and C++ and compile to quantum hardware instructions.

Platform Overview

The upcoming IDE will provide an abstract software layer that translates conventional code into quantum‑ready instructions, optimizes problem formulations for quantum speed‑up, and allows developers to choose the level of abstraction they need, from high‑level algorithm design down to low‑level hardware interaction.

The platform is still under development and has not been officially launched, but it already offers early‑access contracts for developers.

Comparison with Competitors

Classiq, another company in the quantum software space, offers a platform that translates high‑level functions into quantum assembly language using Python and VSCode. Fitzsimons distinguishes Horizon by emphasizing a full re‑engineering of classical programs into quantum algorithms rather than relying on pre‑baked circuit templates.

While Classiq’s solution is production‑ready, Horizon is described as a pre‑launch effort with some R&D contracts providing limited access.

Potential Use Cases

Fitzsimons envisions early applications in high‑performance‑computing‑intensive industries such as finance, optimization, and pharmaceutical chemistry. He also sees opportunities in energy, computational geophysics, aerospace, and automotive sectors where problems like computational fluid dynamics could benefit from quantum acceleration.

Outlook

Although the platform is not yet widely used, Fitzsimons believes 2023 will be a turning point for quantum software development, with significant advances expected in both hardware and software.

"You need software tools and development tools," he says, emphasizing the need for frameworks that help programmers consider quantum effects such as superposition and interference when tackling real‑world problems.