2003/03/19 by Qing-yu Cai, Cai, Qing-yu · 1 citation
Computer Science · Mathematics · Physics and Astronomy · #Algorithm #Computer science #Connection (principal bundle) #FOS: Physical sciences #Geometry #Mathematics #Open quantum system #Physics #Political science #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Physics (quant-ph) #Quantum dynamics #Quantum information #Quantum mechanics #Quantum operation #Quantum process #Quantum state #State (computer science) #Unitary state #quant-ph
paper · pdf · doi:10.48550/arxiv.quant-ph/0303117
arxiv created 2003/03/19 · openalex publication_date 2003/03/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The accessible information decreases under quantum operations. We analyzed the connection between quantum operations and accessible information. We show that a general quantum process cannot be operated accurately. Futhermore, an unknown state of a closed quantum system can not be operated arbitrarily by a unitary quantum operation.