Collective excitation of Rydberg-atom ensembles beyond the superatom model

Collective excitation of Rydberg-atom ensembles beyond the superatom model

In an ensemble of laser-driven atoms involving strongly interacting Rydberg states, the steady-state excitation probability is usually substantially suppressed. In contrast, here we identify a regime in which the Rydberg excited fraction is enhanced by the interaction. This effect is associated with...

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Veröffentlicht in:Physical review letters 2014-12, Vol.113 (23), p.233002-233002, Article 233002
Hauptverfasser: Gärttner, Martin, Whitlock, Shannon, Schönleber, David W, Evers, Jörg
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Coherence
Construction
Dynamics
Excitation
Rydberg states
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container_title Physical review letters
container_volume 113
creator Gärttner, Martin
Whitlock, Shannon
Schönleber, David W
Evers, Jörg
description In an ensemble of laser-driven atoms involving strongly interacting Rydberg states, the steady-state excitation probability is usually substantially suppressed. In contrast, here we identify a regime in which the Rydberg excited fraction is enhanced by the interaction. This effect is associated with the buildup of many-body coherences induced by coherent multiphoton excitations between collective states. The excitation enhancement should be observable under currently existing experimental conditions and may serve as a direct probe for the presence of coherent multiphoton dynamics involving collective quantum states.
doi_str_mv 10.1103/PhysRevLett.113.233002
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subjects Coherence
Construction
Dynamics
Excitation
Rydberg states
title Collective excitation of Rydberg-atom ensembles beyond the superatom model
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