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Thomas Pohl

Coulomb crystallization in expanding laser-cooled neutral plasmas

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We present long-time simulations of expanding ultracold neutral plasmas, including a full treatment of the strongly coupled ion dynamics. Thereby, the relaxation of the expanding laser-cooled plasma is studied, taking into account elastic as well as inelastic collisions. It is demonstrated that, depending on the initial conditions, the ionic component of the plasma may exhibit short-range order or even a superimposed long-range order resulting in concentric ion shells. In contrast to ionic plasmas confined in traps, the shell structures build up from the center of the plasma cloud rather than from the periphery.

Original languageEnglish
Article number155003
JournalPhysical Review Letters
Volume92
Issue15
Number of pages4
ISSN0031-9007
DOIs
Publication statusPublished - 16 Apr 2004

    Research areas

  • ONE-COMPONENT PLASMA, EXPANSION, SIMULATION, ATOMS

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