Coulomb anti-blockade in a Rydberg dressed gas [dataset]

Bridge, Elizabeth (Durham University, UK); Jackson, Niamh (Durham University, UK); Bounds, Alistair (Durham University, UK); Jones, Matther (Durham University, UK); Huillery, Paul (Durham University, UK); Hanley, Ryan (Durham University, UK)

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Coulomb anti-blockade in a Rydberg dressed gas [dataset] Open Access

We perform a comprehensive investigation of the coupling between a Rydberg-dressed atomic gas and an ultra-cold plasma. Using simultaneous timeresolved 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 ultra-cold plasma 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 ultra-cold plasmas.

Descriptions

Resource type: Dataset
Contributors: Creator: Bounds, Alistair ¹
Contact person: Bounds, Alistair ¹
Data collector: Bounds, Alistair ¹
Data curator: Bounds, Alistair ¹
Editor: Bounds, Alistair ¹
Data collector: Jackson, Niamh ¹
Data collector: Hanley, Ryan ¹
Data collector: Bridge, Elizabeth ¹
Data collector: Huillery, Paul ¹
Creator: Jones, Matther ¹

¹ Durham University, UK
Funder: Engineering and Physical Sciences Research Council
Seventh Framework Programme
European union horizon 2020
Research methods
Other description
Keyword: Rydberg
Plasma
Anti-blockade
Strontium
Ion
Subject: Mesoscopic phenomena (Physics)
Rydberg states
Strontium
Plasma (Ionized gases)
Location
Language
Cited in: arxiv:1901.05391
Identifier: ark:/32150/r1vh53wv77q
doi:10.15128/r1vh53wv77q
Publisher: Durham University
Date Created

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Depositor: A.D. Bounds
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