Prescription for experimental determination of the dynamics of a quantum black box

作者：Isaac L. Chuang, Michael A. Nielsen · 发表于：Journal of Modern Optics · 年份：1997 · DOI：10.1080/095003497152609 · 被引用次数：103 · 研究领域：Quantum Information and Cryptography、Quantum Computing Algorithms and Architecture、Quantum Mechanics and Applications

We give an explicit way to experimentally determine the evolution operators which completely describe the dynamics of a quantum-mechanical black box: an arbitrary open quantum system. We show necessary and sufficient conditions for this to be possible and illustrate the general theory by considering specifically one-and two-quantum-bit systems. These procedures may be useful in the comparative evaluation of experimental quantum measurement, communication and computation systems.