Exciton induced directed motion of unconstrained atoms in an ultracold gas

Abstract

We demonstrate that through localised Rydberg excitation in a three-dimensional cold atom cloud atomic motion can be rendered directed and nearly confined to a plane, without spatial constraints for the motion of individual atoms. This enables creation and observation of non-adiabatic electronic Rydberg dynamics in atoms accelerated by dipole-dipole interactions under natural conditions. Using the full $l=0,1$ $m=0,\pm 1$ angular momentum state space, our simulations show that conical intersection crossings are clearly evident, both in atomic position information and excited state spectra of the Rydberg system. Hence, flexible Rydberg aggregates suggest themselves for probing quantum chemical effects in experiments on length scales much inflated as compared to a standard molecular situation.

10 pages, 8 figures. arXiv admin note: text overlap with arXiv:1612.07858

References in corpus (11)

• Coherent Excitation Transfer in a Spin Chain of Three Rydberg Atoms
• Cooling a single atom in an optical tweezer to its quantum ground state
• Experimental investigations of the dipolar interactions between single Rydberg atoms
• Designing Frustrated Quantum Magnets with Laser-Dressed Rydberg Atoms
• Survival Probabilities in Coherent Exciton Transfer with Trapping
• Newton's cradle and entanglement transport in a flexible Rydberg chain
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• Motion of Rydberg atoms induced by resonant dipole-dipole interactions
• Atom-pair kinetics with strong electric-dipole interactions
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Cited by in corpus (9)

• Rydberg Aggregates
• Quantum Zeno suppression of dipole-dipole forces
• Quantum dynamics of long-range interacting systems using the positive-P and gauge-P representations
• Tracking Rydberg atoms with Bose-Einstein Condensates
• Excitation Transport in Molecular Aggregates with thermal motion
• Non-Hermitian matter wave mixing in Bose Einstein condensates: dissipation induced amplification
• Transport on flexible Rydberg aggregates using circular states
• Non-adiabatic dynamics in Rydberg gases with random atom positions
• Multi-Excitons in Flexible Rydberg Aggregates