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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Spelling suggestions: "subject:"dualespécies MOT"" "subject:"quasiespecies MOT""

1

Ion Friction at Small Values of the Coulomb Logarithm

Sprenkle, Robert Tucker 01 July 2018 (has links)
We create a dual-species ultracold neutral plasma (UNP) by photo-ionizing Yb and Ca atoms in a dual-species magneto-optical trap. Unlike single-species UNP expansion, these plasmas are well outside of the collisionless (Vlasov) approximation. We observe the mutual interaction of the Yb and Ca ions by measuring the velocity distribution for each ion species separately. We model the expansion using a fluid code including ion-ion friction and compare with experimental results to obtain a value of the Coulomb logarithm of Λ= 0.04.
dual-species MOT
calcium
ytterbium
strongly coupled plasma
PIC
particle in cell
Vlasov
plasma expansion
Coulomb logarithm
Astrophysics and Astronomy

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