Two-dimensional atom localization induced by a squeezed vacuum |
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Institution: | 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 |
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Abstract: | A scheme of two-dimensional(2D) atom localization induced by a squeezed vacuum is proposed, in which the threelevel 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. |
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Keywords: | atom localization squeezed vacuum resonance fluorescence |
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