Entanglement sudden death via two-photon processes in cavity QED

被引：19
作者：
Cardoso, W. B. [1 ]
Avelar, A. T. [1 ]
Baseia, B. [1 ]
de Almeida, N. G. [1 ]
机构：
[1] Univ Fed Goias, Inst Fis, BR-74001970 Goiania, Go, Brazil
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2009年 / 42卷 / 19期
关键词：
LONG-LIVED ENTANGLEMENT; QUANTUM STATE; TRAPPED IONS; MODEL; ATOM;
D O I：
10.1088/0953-4075/42/19/195507
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In the present work we study the entanglement dynamics between two atoms when one of them, considered as having either two or three levels, is left to interact with a single mode of a high-Q cavity through two-photon processes. Making use of the negativity, we show the necessary conditions for these systems to exhibit the sudden death phenomena.
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页数：5
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