Nvidia Corp. (NASDAQ: NVDA) has unveiled Ising, a groundbreaking open-source AI tool designed to enhance quantum computing by improving quantum-processor calibration and error correction. This announcement has catalyzed a significant market reaction, with U.S.-listed quantum stocks experiencing substantial gains. Notably, IonQ Inc. (NYSE: IONQ) surged approximately 50%, marking its strongest rally since late 2024, while D-Wave Quantum Inc. (NYSE: QBTS) rose about 46%, and Rigetti Computing Inc. (NASDAQ: RGTI) gained over 30%. Nvidia's CEO, Jensen Huang, emphasized the critical role of AI in making quantum computing practical, stating, "AI is essential to making quantum computing practical." Ising consists of two main components: Ising Calibration, which automates the tuning of quantum processors using a vision-language model, and Ising Decoding, which employs 3D convolutional neural networks for real-time error correction. Early adopters of Ising include prestigious institutions like Harvard University and the U.K. National Physical Laboratory, indicating its integration into real scientific workflows. This development positions Nvidia as a pivotal player in the intersection of AI and quantum research, suggesting a transformative impact on the future of quantum computing.