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Thomas Pohl

Influence of electron-ion collisions on Coulomb crystallization of ultracold neutral plasmas

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While ion heating by elastic electron-ion collisions may be neglected for a description of the evolution of freely expanding ultracold neutral plasmas, the situation is different in scenarios where the ions are laser-cooled during the system evolution. We show that electron-ion collisions in laser-cooled plasmas influence the ionic temperature, decreasing the degree of correlation obtainable in such systems. However, taking into account the collisions increases the ion temperature much less than what would be estimated based on static plasma clouds neglecting the plasma expansion. The latter leads to both adiabatic cooling of the ions as well as, more importantly, a rapid decrease of the collisional heating rate.

Original languageEnglish
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume38
Issue2
Pages (from-to)S343-S350
Number of pages8
ISSN0953-4075
DOIs
Publication statusPublished - 28 Jan 2005
EventInternational Workshop and Seminar on Rydberg Physics - Dresden, Germany
Duration: 19 Apr 200414 May 2004

Conference

ConferenceInternational Workshop and Seminar on Rydberg Physics
CountryGermany
CityDresden
Period19/04/200414/05/2004

    Research areas

  • RELAXATION, STATES, SIMULATION, EQUATION, GASES, COLD

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