Piquasso

Piquasso is a full-stack open-source software platform for simulation and programming of photonic quantum computers developed by the Budapest Quantum Computing Group. It can be programmed via a high-level Python programming interface enabling efficient quantum computing with discrete and continuous variables. Via optional high-performance C++ backends, Piquasso provides state-of-the-art performance in photonic quantum computer simulation. An ergonomic drag-and-drop web interface makes simulation data sharing and collaboration simple and accessible. Developed at HUN-REN Wigner Research Centre for Physics and Eötvös Loránd University in Budapest, supported by the Ministry of Culture and Innovation and National Research, Development and Innovation Office through the Quantum Information National Laboratory of Hungary. Published in Quantum journal in 2025.