6533b835fe1ef96bd129ffea
RESEARCH PRODUCT
Ultraprecise Rydberg atomic localization using optical vortices
Gediminas JuzeliūnasNing JiaJing QianHamid Reza HamediTeodora Kirovasubject
Field (physics)Atomic Physics (physics.atom-ph)FOS: Physical sciences02 engineering and technology01 natural sciencesPhysics - Atomic Physics010309 opticsRydberg atoms ; atom localization ; optical vortexsymbols.namesakeOptics0103 physical sciencesSpontaneous emissionPhysics::Atomic PhysicsPhysicsQuantum Physicsbusiness.industry021001 nanoscience & nanotechnologyAtomic and Molecular Physics and OpticsVortexModulationRydberg atomRydberg formulasymbolsAtomic physics0210 nano-technologybusinessQuantum Physics (quant-ph)Optical vortexExcitationdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-05-21 |