Circularizing Rydberg atoms with time-dependent optical traps

Abstract

We discuss three proposed schemes of initializing circular-state Rydberg atoms via optical couplings provided by the ponderomotive effect in contrast to the current circularization methods that utilize electric-dipole interactions. In our first proposed method, a radial optical trap consisting of two Laguerre-Gaussian beams of opposite winding numbers transfers orbital angular momentum to the Rydberg atom, providing a first-order coherent coupling between an F-state and a circular state. Additionally, we propose a one-dimensional ponderomotive optical lattice modulated at rf frequencies, providing quadrupole-like couplings in the hydrogenic manifold for rapid adiabatic passage through a series of intermediate Rydberg states into the circular state. For the third proposed scheme, a two-dimensional ponderomotive optical lattice with a time-orbiting trap center induces effectively the same coupling as a ${\sigma }^{+}$ or ${\sigma }^{-}$-polarized rf field of tunable purity for all-optical rapid adiabatic passage into the circular state.

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• Optical coherent manipulation of alkaline-earth circular Rydberg states
• Discrete-Time Quantum-Walk & Floquet Topological Insulators via Distance-Selective Rydberg-Interaction
• Photoionization of Rydberg Atoms in Optical Lattices
• Photoionization of $nS$ and $nD$ Rydberg atoms of Rb and Cs from the near-infrared to the ultraviolet spectral region
• An optical atomic clock using $4D_J$ states of rubidium
• Spectroscopy of the ${}^{85}$Rb 4$D_{3/2}$ state for hyperfine-structure determination
• Dynamic polarizability of the ${}^{85}$Rb $5D_{3/2}$-state in 1064 nm light
• Driving alkali Rydberg transitions with a phase-modulated optical lattice
• Gauge effects in bound-bound Rydberg-transition matrix elements
• The effect of orientation of Rydberg atoms on their collisional ionization cross section
• Tunable two-species spin models with Rydberg atoms in circular and elliptical states
• Electron cloud design for Rydberg multi-qubit gates
• Programmable order by disorder effect and underlying phases through dipolar quantum simulators