Entanglement generation from deformed spin coherent states using a beam splitter

被引：39

作者：

Berrada, K. ^{[1
]}

El Baz, M. ^{[1
]}

Saif, F. ^{[2
]}

Hassouni, Y. ^{[1
]}

Mnia, S. ^{[1
]}

机构：

[1] Univ Mohammed V Agdal, Fac Sci, Phys Theor Lab, Rabat, Morocco

[2] Quaid I Azam Univ, Dept Elect, Islamabad 45320, Pakistan

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2009年 / 42卷 / 28期

关键词：

QUANTUM CRYPTOGRAPHY; BELL THEOREM; INTERFEROMETER; PHOTON; SYSTEM;

D O I：

10.1088/1751-8113/42/28/285306

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the linear entropy as a measure of entanglement, we investigate the effect of a beam splitter on the Perelomov coherent states for the q-deformed U-q (su(2)) algebra. We distinguish two cases: in the classical q -> 1 limit, we find that the states become Glauber coherent states as the spin tends to infinity; whereas for q not equal 1, the states, contrary to the earlier case, become entangled as they pass through a beam splitter. The entanglement strongly depends on the q-deformation parameter and the amplitude Z of the state.

引用

页数：13

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