Dipolar dephasing of Rydberg D-state polaritons

Abstract

We experimentally study the effects of the anisotropic Rydberg-interaction on $D$-state Rydberg polaritons slowly propagating through a cold atomic sample. In addition to the few-photon nonlinearity known from similar experiments with Rydberg $S$-states, we observe the interaction-induced dephasing of Rydberg polaritons at very low photon input rates into the medium. We develop a model combining the propagation of the two-photon wavefunction through our system with nonperturbative calculations of the anisotropic Rydberg-interaction to show that the observed effect can be attributed to pairwise interaction of individual Rydberg polaritons.

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• Accurate mapping of multilevel Rydberg atoms on interacting spin-$1/2$ particles for the quantum simulation of Ising models
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• Enhanced third-order and fifth-order Kerr nonlinearities in a cold atomic system via Rydberg-Rydberg interaction
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• Electromagnetically Induced Transparency of Interacting Rydberg Atoms with Two-Body dephasing
• Two photon conditional phase gate based on Rydberg slow light polaritons
• Experimental demonstration of switching entangled photons based on the Rydberg blockade effect
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• Resonance-enhanced collective effect in a triangle arrangement of Rydberg atoms with anisotropic interactions
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• Interaction-Enhanced Imaging of Rydberg P states
• Resonant enhancement of three-body loss between strongly interacting photons
• Dephasing of ultracold cesium $80D_{5/2}$-Rydberg Electromagnetically Induced Transparency
• Coherence enhancement of Rydberg polaritons
• Single photonic qutrit in a collective Rydberg polariton