Preparation and control of atomic optimal entropy squeezing states for a moving two-level atom under control of the two-mode squeezing vacuum fields

doi:10.1088/1674-1056/19/12/124207

Abstract From the viewpoint of quantum information, this paper studies preparation and control of atomic optimal entropy squeezing states (AOESS) for a moving two-level atom under control of the two-mode squeezing vacuum fields. Necessary conditions of preparation of the AOESS are analysed, and numerical verification of the AOESS is finished. It shows that the AOESS can be prepared by controlling the time of the atom interaction with the field, cutting the entanglement between the atom and field, and adjusting squeezing factor of the field. An atomic optimal entropy squeezing sudden generation in different components can alternately be realized by controlling the field-mode structure parameter.

Keywords: atomic optimal entropy squeezing state squeezing factor of the field the field-mode structure parameter

Received: 25 November 2009
Revised: 10 May 2010
Accepted manuscript online:

PACS:	37.10.Vz	(Mechanical effects of light on atoms, molecules, and ions)
	42.50.Dv	(Quantum state engineering and measurements)
	42.50.Gy	(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
	42.50.Lc	(Quantum fluctuations, quantum noise, and quantum jumps)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 19874020), the Natural Science Foundation of Hunan Province of China (Grant Nos. 09JJ3012 and 10JJ9002), and the Research Foundation of Education Bureau of Hunan Province of China (Grant No. 10A032).

Cite this article:

Zhou Bing-Ju(周并举), Liu Yi-Man(刘一曼), Zhao Ming-Zhuo(赵明卓), and Liu Xiao-Juan(刘小娟) Preparation and control of atomic optimal entropy squeezing states for a moving two-level atom under control of the two-mode squeezing vacuum fields 2010 Chin. Phys. B 19 124207

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Preparation and control of atomic optimal entropy squeezing states for a moving two-level atom under control of the two-mode squeezing vacuum fields

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