ENTANGLEMENT AND PHOTON DYNAMICS IN THE INTERACTION BETWEEN TWO QUANTIZED ELECTROMAGNETIC FIELDS AND 3-LEVEL ATOMS

被引：1
|
作者：
Vaseghi, B. [1 ]
Rezaei, G. [1 ]
Khordad, R. [1 ]
Zadeh, A. Fallah [2 ]
机构：
[1] Univ Yasuj, Dept Phys, Coll Sci, Yasuj 75914353, Iran
[2] Shiraz Univ, Dept Phys, Coll Sci, Shiraz 71945, Iran
来源：
INTERNATIONAL JOURNAL OF QUANTUM INFORMATION | 2011年 / 9卷 / 01期
关键词：
3-level atom; collapse; revival; coherent field; noncoherent field; entanglement; QUANTUM; COHERENT; STATE; COLLAPSE; REVIVAL; DRIVEN;
D O I：
10.1142/S0219749911006703
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
We study in this paper the dynamics of two electromagnetic (EM) fields and their entanglement in the interaction with a 3-level atom (Lambda-con figuration). We investigate the interaction when initially one of the fields is in a single mode coherent state, and the other one is in a Fock (number) state. We have calculated the mean photon numbers of the fields and their entanglement by means of the fields entropy as a measure of it. The results show the synchronization between entanglement beats and collapses-revivals of the fields, which cause the field in the Fock state (noncoherent) to behave coherently during the interaction. Also the results offer a way to generate coherent fields and achieve any desired degree of entanglement with specified dynamics via controlling the parameters of the atomic system.
引用
收藏
页码：593 / 605
页数：13
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