Unusual entanglement transformation properties of the quantum radiation through one-dimensional random system containing left-handed-materials

被引：2

作者：

Dong, Yunxia ^{[1
]}

Zhang, Xiangdong ^{[1
]}

机构：

[1] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China

来源：

PROCEEDINGS OF THE 2008 INTERNATIONAL WORKSHOP ON METAMATERIALS | 2008年

关键词：

NEGATIVE REFRACTION; STATE;

D O I：

10.1109/META.2008.4723580

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The quantum radiation through the multilayer structures containing the left-handed materials is investigated based on the Green-function approach to the quantization of the phenomenological Maxwell theory. Emphasis is placed on the effect of randomness on the generation and transmission of entangled-states. It is shown that some unusual properties appear for the present systems in comparison with those of the conventional dielectric structures. The quantum relative entropy is always enhanced with the increase of random degree due to the existence of nonlocalized mode in the present systems, while the maximal entanglement can be observed only at some certain randomness for the conventional dielectric structures. In contrast to exponential decrease in the conventional systems, the entanglement degrades slowly with the increase of disorder and thickness of the sample near the nonlocalized mode after transmission through the present systems. This will benefit the quantum communication for long distances.

引用

页码：216 / 218

页数：3

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