原子与分子物理学报2004，Vol.21Issue(z1)：380-382,3.
Unknowability of Quantum State forbids perfectly quantum operations
Unknowability of Quantum State forbids perfectly quantum operations
摘要
Abstract
We analyze the connection between quantum operations and accessible information. And we find that the accessible information decreases under quantum operations. We show that it is impossible to perfectly manipulate an unknown state in an open quantum system. That the accessible information decreases under quantum operations gives a fundamental limitation in the microscopic world.关键词
Unknown states/Quantum operations/Accessible informationKey words
Unknown states/Quantum operations/Accessible information分类
数理科学引用本文复制引用
CAI Qing-yu,LI Bai-wen..Unknowability of Quantum State forbids perfectly quantum operations[J].原子与分子物理学报,2004,21(z1):380-382,3.基金项目
Supported by the NNSFC (Grant No. 10304022). （Grant No. 10304022）
