Two-dimensional atom localization induced by a squeezed vacuum

Fei Wang(王飞)^{1}, Jun Xu(徐俊)^{2}

1 College of Science, China Three Gorges University, Yichang 443002, China; 2 College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China

Abstract A scheme of two-dimensional (2D) atom localization induced by a squeezed vacuum is proposed, in which the three-level V-type atoms interact with two classical standing-wave fields. It is found that when the environment is changed from an ordinary vacuum to a squeezed vacuum, the 2D atom localization is realized by detecting the position-dependent resonance fluorescence spectrum. For comparison, we demonstrate that the atom localization originating from the quantum interference effect is distinct from that induced by a squeezed vacuum. Furthermore, the combined effects of the squeezed vacuum and quantum interference are also discussed under appropriate conditions. The internal physical mechanism is analyzed in terms of dressed-state representation.

(Coherent control of atomic interactions with photons)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11574179 and 11204099) and the Natural Science Foundation of Hubei Province, China (Grant No. 2014CFC1148).

Corresponding Authors:
Fei Wang
E-mail: feiwang202@163.com

Cite this article:

Fei Wang(王飞), Jun Xu(徐俊) Two-dimensional atom localization induced by a squeezed vacuum 2016 Chin. Phys. B 25 104201

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