论文标题
量子载体中强烈的非定量经典信息
Strongly non-quantitative classical information in quantum carriers
论文作者
论文摘要
提高通信质量的一种简单方法是发送带有其副本的载体。古典信息理论说，信息在复制中进行定量行为。换句话说，如果运营商比另一个载体更有用，那么当它们与副本进行比较时，它仍然如此。使用量子力学的镜头，我们挑战了经典信息理论的公认事实。具体而言，我们通过相同的随机变量检查了两个量子系统对参数化的参数方式不同，因此仅第一个系统就可以对任何功绩数字中的变量进行更准确的猜测，而第二个系统的两个副本则在某些功绩中比原始系统的两个副本更大。这一发现揭示了经典信息及其载体之间的概念差异，并暗示有可能以量子信息形式隐藏经典信息。
A simple method to enhance the quality of communication is to send a carrier with its copies. Classical information theory says that information behaves quantitatively under copying. In other words, if a carrier is more informatic than another carrier, it remains so when they are compared with their copies. Using the lens of quantum mechanics, we challenge this accepted fact of classical information theory. Specifically, we examine two quantum systems parameterized differently by the same random variable such that the first system alone offers a more accurate guess about the variable in any figure of merit, while the two copies of the second system together do more in some figures of merit than the two copies of the original system. This finding unveils a conceptual discrepancy between classical information and its carrier, and implies the possibility of hiding classical information in a form of quantum information.
