Excitation transport through Rydberg dressing

Details Excitation transport through Rydberg dressing Excitation transport through Rydberg dressing

2010-11-24

arxiv.org/abs/1011.5483v3

New J. Phys. 13 (2011) 073044

Physics

Atomic Physics

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

Scientific paper

10.1088/1367-2630/13/7/073044

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.

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