Abstract
We propose a new scheme for two-dimensional (2D) and three-dimensional (3D) atom localization via spatial quantum interference in a five-level atomic system driven by an additional incoherent pump. Because of the position-dependent atom–field interaction, the position information of the atom can be obtained by the measurement of the probe absorption. We find that the 3D atom localization is obtained with high precision by adjusting the incoherent pump. In particular, we show that adjusting the incoherent pump can lead to a redistribution of the atoms and a significant change in the visibility of the interference pattern. As a result, the atom can be localized in volumes that are substantially smaller than a cubic optical wavelength.
Published Version
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