Laser cooling of ions in a neutral plasma

Author:

Langin Thomas K.1ORCID,Gorman Grant M.1ORCID,Killian Thomas C.1ORCID

Affiliation:

1. Department of Physics and Astronomy, Rice University, 6100 Main Street, Houston, TX 77005, USA.

Abstract

Making a strongly coupled plasma Plasmas—gases of ionized atoms and electrons—are naturally formed at high temperatures, such as those reached in the interiors of stars. Describing plasmas theoretically is tricky when they are in the strongly coupled regime; reaching that regime in the laboratory would provide a valuable benchmark for theory. To that end, Langin et al. worked with a cold plasma created out of atoms of strontium that were ionized by laser light (see the Perspective by Bergeson). They used lasers to cool the ions down to about 50 millikelvin, reaching the desired strongly coupled regime. Science , this issue p. 61 ; see also p. 33

Funder

U.S. Department of Energy

Air Force Office of Scientific Research

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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