Quantum inference of states and processes

作者：Miroslav Ježek, Jaromı́r Fiurášek, Z. Hradil · 发表于：Physical Review A · 年份：2003 · DOI：10.1103/physreva.68.012305 · 被引用次数：178 · 研究领域：Quantum Information and Cryptography、Quantum Mechanics and Applications、Spectroscopy and Quantum Chemical Studies

The maximum-likelihood principle unifies inference of quantum states and processes from experimental noisy data. Particularly, a generic quantum process may be estimated simultaneously with unknown quantum probe states, provided that measurements on probe and transformed probe states are available. Drawbacks of various approximate treatments are also considered.