Ultraprecise Rydberg atomic localization using optical vortices
Abstract
We propose a robust localization of the highly-excited Rydberg atoms, interacting with doughnut-shaped optical vortices. Compared with the earlier standing-wave (SW)-based localization methods, a vortex beam can provide an ultrahigh-precision two-dimensional localization solely in the zero-intensity center, within a confined excitation region down to the nanometer scale. We show that the presence of the Rydberg-Rydberg interaction permits counter-intuitively much stronger confinement towards a high spatial resolution when it is partially compensated by a suitable detuning. In addition, applying an auxiliary SW modulation to the two-photon detuning allows a three-dimensional confinement of Rydberg atoms. In this case, the vortex field provides a transverse confinement while the SW modulation of the two-photon detuning localizes the Rydberg atoms longitudinally. To develop a new subwavelength localization technique, our results pave one-step closer to reduce excitation volumes to the level of a few nanometers, representing a feasible implementation for the future experimental applications.
Cite
@article{arxiv.2005.10725,
title = {Ultraprecise Rydberg atomic localization using optical vortices},
author = {Ning Jia and Teodora Kirova and Gediminas Juzeliunas and Hamid Reza Hamedi and Jing Qian},
journal= {arXiv preprint arXiv:2005.10725},
year = {2020}
}
Comments
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