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Thomas Pohl

Ultracold neutral plasmas and Rydberg gases

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We present two different theoretical approaches for the simulation of ultracold plasmas and Rydberg gases, namely a simple kinetic model including an approximate treatment of ionic correlations on the one hand and a hybrid molecular dynamics (MD) approach treating the electrons as a fluid but ions and atoms on a full MD level on the other hand. The simple kinetic model can be used in situations where the number of particles is so large that it prohibits an MD simulation, and, maybe even more importantly, it gives additional insight into the dynamics beyond that possible on the basis of MD simulations by providing simple evolution equations for the macroscopic parameters describing the state of the system. On the other hand, the MD approach provides a powerful method for the study of spatially resolved quantities, and it permits the study of scenarios where the ions are so strongly coupled that Coulomb crystallization occurs, which cannot be described by the kinetic model. (c) 2005 Published by Elsevier B.V.

Original languageEnglish
JournalNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Pages (from-to)132-140
Number of pages9
Publication statusPublished - May 2005
Event8th Workshop on Fast Ion-Atom Collisions - Debrecen, Hungary
Duration: 1 Sep 20043 Sep 2004


Conference8th Workshop on Fast Ion-Atom Collisions

    Research areas

  • ultracold plasmas, kinetic approach, hybrid molecular dynamics, RELAXATION, EXPANSION, ATOMS, EVOLUTION, STATES, COLD

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