Operator monotones, the reduction criterion and the relative entropy

被引:58
作者
Plenio, MB [1 ]
Virmani, S [1 ]
Papadopoulos, P [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Opt Sect, London SW7 2BZ, England
来源
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2000年 / 33卷 / 22期
关键词
D O I
10.1088/0305-4470/33/22/101
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We introduce the theory of operator monotone functions and employ it to derive a new inequality relating the quantum relative entropy and the quantum conditional entropy. We present applications of this new inequality and, in particular, we prove a new lower bound on the relative entropy of entanglement and other properties of entanglement measures.
引用
收藏
页码:L193 / L197
页数:5
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