Experimental Measurement of Self-Diffusion in a Strongly Coupled Plasma

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dc.citation.articleNumber21021en_US
dc.citation.issueNumber2en_US
dc.citation.journalTitlePhysical Review Xen_US
dc.citation.volumeNumber6en_US
dc.contributor.authorStrickler, T.S.en_US
dc.contributor.authorLangin, T.K.en_US
dc.contributor.authorMcQuillen, P.en_US
dc.contributor.authorDaligault, J.en_US
dc.contributor.authorKillian, T.C.en_US
dc.date.accessioned2017-05-22T21:48:43Zen_US
dc.date.available2017-05-22T21:48:43Zen_US
dc.date.issued2016en_US
dc.description.abstractWe present a study of the collisional relaxation of ion velocities in a strongly coupled, ultracold neutral plasma on short time scales compared to the inverse collision rate. The measured average velocity of a tagged population of ions is shown to be equivalent to the ion-velocity autocorrelation function. We thus gain access to fundamental aspects of the single-particle dynamics in strongly coupled plasmas and to the ion self-diffusion constant under conditions where experimental measurements have been lacking. Nonexponential decay towards equilibrium of the average velocity heralds non-Markovian dynamics that are not predicted by traditional descriptions of weakly coupled plasmas. This demonstrates the utility of ultracold neutral plasmas for studying the effects of strong coupling on collisional processes, which is of interest for dense laboratory and astrophysical plasmas.en_US
dc.identifier.citationStrickler, T.S., Langin, T.K., McQuillen, P., et al.. "Experimental Measurement of Self-Diffusion in a Strongly Coupled Plasma." <i>Physical Review X,</i> 6, no. 2 (2016) American Physical Society: https://doi.org/10.1103/PhysRevX.6.021021.en_US
dc.identifier.doihttps://doi.org/10.1103/PhysRevX.6.021021en_US
dc.identifier.urihttps://hdl.handle.net/1911/94344en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsThis article is available under the terms of theﾠCreative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published articleﾒs title, journal citation, and DOI.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/en_US
dc.titleExperimental Measurement of Self-Diffusion in a Strongly Coupled Plasmaen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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