Excitation transport through Rydberg dressing

Abstract

We show how to create long range interactions between alkali-atoms in different hyper-fine ground states, allowing coherent electronic quantum state migration. The scheme uses off resonant dressing with atomic Rydberg states, exploiting the dipole-dipole excitation transfer that is possible between those. Actual population in the Rydberg state is kept small. Dressing offers large advantages over the direct use of Rydberg levels: It reduces ionisation probabilities and provides an additional tuning parameter for life-times and interaction-strengths. We present an effective Hamiltonian for the ground-state manifold and show that it correctly describes the full multi-state dynamics for up to 5 atoms.

22 pages + 6 pages appendices, 8 figures, replaced with revised version, added journal reference

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• Discrete-Time Quantum-Walk & Floquet Topological Insulators via Distance-Selective Rydberg-Interaction
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• Dipole-dipole induced global motion of Rydberg-dressed atom clouds
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• Macroscopic Particle Transport in Dissipative Long-Range Bosonic Systems
• String breaking dynamics in Ising chain with local vibrations
• Fano Resonances in Quantum Transport with Vibrations