Entropy squeezing for three-level atom interacting with a single-mode field

doi:10.1088/1674-1056/28/6/060304

Abstract

The entropy squeezing for a three-level atom interacting with a single-model field is studied. A general definition of entropy squeezing for three-level atom is given according to entropic uncertainty relation of three-level system, and the calculation formalism of entropy is derived for a cascade three-level atom. By using numerical calculation, the entropy squeezing properties of a cascade three-level atom are examined. Our results show that, three-level atom can generate obvious entropy squeezing effect via choosing appropriate superposition state of three-level atom. Our results are meaningful for preparing three-level system information resources with ultra-low quantum noise.

Keywords: variance squeezing entropy squeezing three-level atom

Received: 02 January 2019
Revised: 27 March 2019
Accepted manuscript online:

PACS:	03.67.-a	(Quantum information)
	03.65.Yz	(Decoherence; open systems; quantum statistical methods)

Fund:

Project supported by the National Natural Science Foundation of China (Grant No. 11374096).

Corresponding Authors: Mao-Fa Fang
E-mail: mffang@hunnu.edu.cn

Cite this article:

Fei-Fan Liu(刘非凡), Mao-Fa Fang(方卯发), Xiong Xu(许雄) Entropy squeezing for three-level atom interacting with a single-mode field 2019 Chin. Phys. B 28 060304

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