Fidelity of quantum information for Ⅴ-type three-level atom interacting with a number state light field in Kerr medium

Liu Su-Mei; He An-Zhi; Ji Yun-Jing

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Fidelity of quantum information for Ⅴ-type three-level atom interacting with a number state light field in Kerr medium

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In this paper the evolution characteristics of the fidelity of quantum information for the Ⅴ-type three-level atom interacting with number state light field in Kerr medium are investigated. It shows that the periodicity of the evolutions of fidelity of quantum information is influenced by the Kerr coefficient, the photon number of the initial field and intensity of light. The evolutions of the fidelity of quantum information are modulated by the initial number state field. The Rabi oscillation frequency and the modulation frequency of fidelity for the field and the system vary with the value of the Kerr coefficient. The evolutions of fidelity of quantum information obviously show the quantum collapse and revival behaviours in the system of atom interacting with light field.

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《中国物理：英文版》 |2008年第4期|1248-1253|共6页
作者
Liu Su-Mei; He An-Zhi; Ji Yun-Jing;
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作者单位

School of Science, Nanjing University of Science and Technology, Nanjing 210094, China;

School of Science, Nanjing University of Science and Technology, Nanjing 210094, China;

School of Science, Nanjing University of Science and Technology, Nanjing 210094, China;

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原文格式 PDF
正文语种 chi
中图分类物理学;
关键词
quantum optics, fidelity, number state, Kerr medium;

机译：量子光学;保真度;数态;克尔介质;

Fidelity of quantum information for Ⅴ-type three-level atom interacting with a number state light field in Kerr medium

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