Negative entropy and information in quantum mechanics

被引：328

作者：

Cerf, NJ ^{[1
]}

Adami, C ^{[1
]}

机构：

[1] CALTECH, WK Kellogg Radiat Lab, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.79.5194

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A framework for a quantum mechanical information theory is introduced that is based entirely on density operators, and gives rise to a unified description of classical correlation and quantum entanglement. Unlike in classical (Shannon) information theory, quantum (von Neumann) conditional entropies can be negative when considering quantum entangled systems, a fact related to quantum nonseparability. The possibility that negative (virtual) information can be carried by entangled particles suggests a consistent interpretation of quantum informational processes. [S0031-9007(97)04813-8].

引用

页码：5194 / 5197

页数：4

共 18 条

[1] COMMUNICATION VIA ONE-PARTICLE AND 2-PARTICLE OPERATORS ON EINSTEIN-PODOLSKY-ROSEN STATES [J].