Quantum entanglement between a double quantum dot and photons

被引：7

作者：

Dong, Yong ^{[1
]}

Kuang, Le-Man ^{[1
]}

机构：

[1] Hunan Normal Univ, Dept Phys, Changsha 410081, Peoples R China

来源：

PHYSICS LETTERS A | 2007年 / 367卷 / 1-2期

关键词：

D O I：

10.1016/j.physleta.2007.02.072

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this Letter, we study generation of entangled states in a system of a double quantum dot (DQD) interacting with a quantized cavity field. The DQD and the cavity field are treated as a two-state charge qubit and a continuous-variable system, respectively. We explicitly create hybrid entangled states between the DQD and the cavity field. DQD-photon entanglement dynamics is investigated in terms of the concurrence. It is shown that the DQD-photon entanglement evolves periodically. It is indicated that the initial state of the cavity field can control and manipulate the entanglement dynamics. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：40 / 46

页数：7

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