AC-Stark shift and photoionization of Rydberg atoms in an optical dipole trap

Abstract

We have measured the AC-Stark shift of the $14D_{5/2}$ Rydberg state of rubidium 87 in an optical dipole trap formed by a focussed CO${}_2$-laser. We find good quantitative agreement with the model of a free electron experiencing a ponderomotive potential in the light field. In order to reproduce the observed spectra we take into account the broadening of the Rydberg state due to photoionization. The extracted cross-section is compatible with previous measurements on neighboring Rydberg states.

References in corpus (14)

• Quantum information with Rydberg atoms
• Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles
• Fast quantum gates for neutral atoms
• Observation of Rydberg blockade between two atoms
• Observation of collective excitation of two individual atoms in the Rydberg blockade regime
• Three-dimensional Roton-Excitations and Supersolid formation in Rydberg-excited Bose-Einstein Condensates
• Evidence for coherent collective Rydberg excitation in the strong blockade regime
• Strongly correlated gases of Rydberg-dressed atoms: quantum and classical dynamics
• Experimental demonstration of single-site addressability in a two-dimensional optical lattice
• Collective many-body interaction in Rydberg dressed atoms
• Interactions Between Rydberg-Dressed Atoms
• Relativistic many-body calculations of electric-dipole matrix elements, lifetimes and polarizabilities in rubidium
• Spatially Resolved Excitation of Rydberg Atoms and Surface Effects on an Atom Chip
• Rabi oscillations and excitation trapping in the coherent excitation of a mesoscopic frozen Rydberg gas

Cited by in corpus (8)

• Many-body Physics with Alkaline-Earth Rydberg lattices
• Nondestructive light-shift measurements of single atoms in optical dipole traps
• Continuous Coupling of Ultracold Atoms to an Ionic Plasma via Rydberg Excitation
• Diffusive-like Redistribution in State-changing Collisions between Rydberg Atoms and Ground State Atoms
• Modulation spectroscopy of Rydberg atoms in an optical lattice
• A laser system for the excitation of rubidium Rydberg states using second harmonic generation in a PPLN waveguide crystal
• Gauge effects in bound-bound Rydberg-transition matrix elements
• Singularities of Floquet Scattering and Tunneling