Quantum brushes are computational arts software introduced by Ferreira et al (2025) that leverage quantum behavior to generate novel artistic effects. In this outreach paper, we introduce the mathematical framework and describe the implementation of two quantum brushes based on variational quantum algorithms, Steerable and Chemical. While Steerable uses quantum geometric control theory to merge two works of art, Chemical mimics variational eigensolvers for estimating molecular ground energies to evolve colors on an underlying canvas. The implementation of both brushes is available open-source at https://github.com/moth-quantum/QuantumBrush and is fully compatible with the original quantum brushes.

翻译：量子画笔是由Ferreira等人（2025年）引入的计算艺术软件，其利用量子行为生成新颖的艺术效果。在这篇科普论文中，我们介绍了数学框架，并描述了基于变分量子算法的两种量子画笔——Steerable与Chemical——的实现。Steerable利用量子几何控制理论融合两件艺术作品，而Chemical则模仿用于估算分子基态能量的变分本征求解器，以演化底层画布上的色彩。两种画笔的实现均在https://github.com/moth-quantum/QuantumBrush开源提供，并与原始量子画笔完全兼容。