On the correlations between quantum entanglement and q-information measures

被引：7

作者：

Batle, J

Casas, M

Plastino, A ^{[1
]}

Plastino, AR ^{[1
]}

机构：

[1] Univ Illes Balears, Dept Fis, CSIC, IMEDEA, E-07071 Palma de Mallorca, Spain

[2] Natl Univ La Plata, Dept Phys, RA-1900 La Plata, Argentina

[3] Univ Pretoria, Dept Phys, ZA-0002 Pretoria, South Africa

[4] Natl Univ La Plata, Fac Astron & Geophys, RA-1900 La Plata, Argentina

[5] Consejo Nacl Invest Cient & Tecn, RA-1900 La Plata, Argentina

来源：

PHYSICS LETTERS A | 2003年 / 318卷 / 06期

关键词：

D O I：

10.1016/j.physleta.2003.09.059

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the present Letter we revisit the application of the q-information measures R-q of Renyi and S-q of Tsallis to the discussion of special features of two qubits systems. More specifically, we study the correlations between the q-information measures and the entanglement of formation of a general (pure or mixed) state p describing a system of two qubits. The analysis uses a Monte Carlo procedure involving the 15-dimensional 2-qubits space of pure and mixed states, under the assumption that these states are uniformly distributed according to the product measure recently introduced by Zyczkowski et al. [Phys. Rev. A 58 (1998) 883]. (C) 2003 Published by Elsevier B.V.

引用

页码：506 / 513

页数：8

共 43 条

[1] Nonadditive information measure and quantum entanglement in a class of mixed states of an Nn system -: art. no. 052323 [J].