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
相关论文
共 31 条
[1]  
[Anonymous], 1996, Matrix Analysis
[2]  
Bennett CH, 1996, PHYS REV A, V54, P3824, DOI 10.1103/PhysRevA.54.3824
[3]   Concentrating partial entanglement by local operations [J].
Bennett, CH ;
Bernstein, HJ ;
Popescu, S ;
Schumacher, B .
PHYSICAL REVIEW A, 1996, 53 (04) :2046-2052
[4]   Quantum extension of conditional probability [J].
Cerf, NJ ;
Adami, C .
PHYSICAL REVIEW A, 1999, 60 (02) :893-897
[5]   FREE-ENERGY AND THE RELATIVE ENTROPY [J].
DONALD, MJ .
JOURNAL OF STATISTICAL PHYSICS, 1987, 49 (1-2) :81-87
[6]   FURTHER RESULTS ON THE RELATIVE ENTROPY [J].
DONALD, MJ .
MATHEMATICAL PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY, 1987, 101 :363-373
[7]   ON THE RELATIVE ENTROPY [J].
DONALD, MJ .
COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1986, 105 (01) :13-34
[8]   Method of areas for manipulating the entanglement properties of one copy of a two-particle pure entangled state [J].
Hardy, L .
PHYSICAL REVIEW A, 1999, 60 (03) :1912-1923
[9]   Separability of mixed states: Necessary and sufficient conditions [J].
Horodecki, M ;
Horodecki, P ;
Horodecki, R .
PHYSICS LETTERS A, 1996, 223 (1-2) :1-8
[10]   Reduction criterion of separability and limits for a class of distillation protocols [J].
Horodecki, M ;
Horodecki, P .
PHYSICAL REVIEW A, 1999, 59 (06) :4206-4216