Lee A. Rozema

Jul 18, 2024 | nature.com | Lee A. Rozema |Huan H. Cao |Yu Guo |Bi-Heng Liu

AbstractIn the past decade, the toolkit of quantum information has been expanded to include processes in which the basic operations do not have definite causal relations. Originally considered in the context of the unification of quantum mechanics and general relativity, these causally indefinite processes have been shown to offer advantages in a wide variety of quantum-information processing tasks, ranging from quantum computation to quantum metrology.