1999/08/31 by T. C. Killian, S. Kulin, S. A. Kulin +6 · 2 citations
Physics and Astronomy · #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Debye #Debye length #Dust and Plasma Wave Phenomena #Electron #Ion #Ionization #Materials science #Nuclear physics #Photoionization #Physics #Plasma #Quantum, superfluid, helium dynamics #Trapping #Xenon #physics.atom-ph #physics.plasm-ph
paper · pdf · doi:10.1103/physrevlett.83.4776
published as Phys. Rev. Lett. 83, 4776 (1999) · 4 pages, 3 figures
openalex publication_date 1999/12/06 · arxiv created 2000/05/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report the creation of an ultracold neutral plasma by photoionization of laser-cooled xenon atoms. The charge carrier density is as high as 2\ifmmode×\else\texttimes\fi109cm^\ensuremath-3, and the temperatures of electrons and ions are as low as 100 mK and 10\ensuremathμK, respectively. Plasma behavior is evident in the trapping of electrons by the positive ion cloud when the Debye screening length becomes smaller than the size of the sample. We produce plasmas with parameters such that both electrons and ions are strongly coupled.