English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We experimentally observed an accumulative type of nonlinear attenuation anddistortion of slow light, i.e., Rydberg polaritons, with the Rydberg state$|32D_{5/2}\rangle$ in the weak-interaction regime. The present effect ofattenuation and distortion cannot be explained by considering only thedipole-dipole interaction (DDI) between Rydberg atoms in $|32D_{5/2}\rangle$.Our observation can be attributed to the atoms in the dark Rydberg states otherthan those in the bright Rydberg state, i.e., $|32D_{5/2}\rangle$, driven bythe coupling field. The dark Rydberg states are all the possible states, inwhich the population decaying from $|32D_{5/2}\rangle$ accumulated over time,and they were not driven by the coupling field. Consequently, the DDI betweenthe dark and bright Rydberg atoms increased the decoherence rate of the Rydbergpolaritons. We performed three different experiments to verify the abovehypothesis, to confirm the existence of the dark Rydberg states, and to measurethe decay rate from the bright to dark Rydberg states. In the theoreticalmodel, we included the decay process from the bright to dark Rydberg states andthe DDI effect induced by both the bright and dark Rydberg atoms. All theexperimental data of slow light taken at various probe Rabi frequencies were ingood agreement with the theoretical predictions based on the model. This studypointed out an additional decoherence rate in the Rydberg-EIT effect, andprovides a better understanding of the Rydberg-polariton system.

Increasing decoherence rate of Rydberg polaritons due to accumulating dark Rydberg atoms