This paper addresses knowledge production patterns in the research and development of quantum technologies, perhaps one of the most promising advances in modern times. Using a publication data and innovation system framework, this paper investigates and compares the knowledge production patterns of China and the US in quantum technology. Empirical evidence suggests that China's scientific knowledge production focuses relatively more on domestic research collaboration, and 'communication' technology, and core-periphery collaboration partners, while US knowledge production focuses on both domestic and international collaboration, and specializes more in 'computing' technology, and more collaborations with OECD countries through their institutional assets. This study contributes to understanding the different knowledge production patterns of China and the US in quantum technology, with implications for other countries. Several implications and a future research agenda are discussed.