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Article Dans Une Revue New Journal of Physics Année : 2019

Coulomb anti-blockade in a Rydberg gas

A Bounds
  • Fonction : Auteur
N Jackson
  • Fonction : Auteur
R Hanley
E Bridge
  • Fonction : Auteur
M Jones
  • Fonction : Auteur

Résumé

Abstract We perform a comprehensive investigation of the coupling between a Rydberg-dressed atomic gas and an ultra-cold plasma (UCP). Using simultaneous time-resolved measurements of both neutral atoms and ions, we show that plasma formation occurs via a Coulomb anti-blockade mechanism, in which background ions DC Stark shift nearby atoms into resonance at specific distances. The result is a highly correlated growth of the Rydberg population that shares some similarities with that previously observed for van der Waals interactions. We show that a rate equation model that couples the laser-driven Rydberg gas to the UCP via a Coulomb anti-blockade mechanism accurately reproduces both the plasma formation and its subsequent decay. Using long-lived high angular momentum states as a probe, we also find evidence of a crossover from Coulomb anti-blockade to Coulomb blockade at high density. As well as shedding light on loss mechanisms in Rydberg-dressed gases, our results open new ways to create low-entropy states in UCPs.

Dates et versions

hal-04291844 , version 1 (17-11-2023)

Identifiants

Citer

A Bounds, N Jackson, R Hanley, E Bridge, Paul Huillery, et al.. Coulomb anti-blockade in a Rydberg gas. New Journal of Physics, 2019, 21 (5), pp.053026. ⟨10.1088/1367-2630/ab1c0e⟩. ⟨hal-04291844⟩
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