Effect of decoherence from a spin environment on the entanglement dynamics of two-qutrit states

被引：10

作者：

Ma XiaoSan ^{[1
]}

Ren MingFan ^{[1
]}

Zhao GuangXing ^{[1
]}

Wang AnMin ^{[2
]}

机构：

[1] Anhui Univ Technol, Sch Elect Engn & Informat, Maanshan 243002, Peoples R China

[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China

来源：

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2011年 / 54卷 / 10期

基金：

中国国家自然科学基金;

关键词：

entanglement dynamics; quantum decoherence; a spin environment; THERMAL ENTANGLEMENT;

D O I：

10.1007/s11433-011-4458-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The entanglement dynamics of a two-qutrit system under decoherence from a spin environment is investigated by using negativity as entanglement measure. Our results imply that the entanglement evolution depends not only on the coupling strength and the tunneling elements of the environment but also on the number of the freedom degrees and the initial state of the environment.

引用

页码：1833 / 1838

页数：6

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