Quantum information refers to the physical information carried by the “state” of quantum systems. It integrates the essence of quantum mechanics and information science, ushering in novel paradigms for computation, encoding, and information transmission. Quantum information represents a mode of information processing that leverages various coherent properties of quantum systems, such as quantum parallelism, quantum entanglement, and the no-cloning theorem, for computation, encoding, and information transmission. As an emerging interdisciplinary field, quantum information is attracting increasing attention from researchers and investors alike, fueled by its unique allure and vast potential for applications. With continuous advancements in technology and expanding applications, it is believed that quantum information will play an increasingly pivotal role in future societies.