Electron screening and kinetic-energy oscillations in a strongly coupled plasma.
Phys Rev Lett
; 93(26 Pt 1): 265003, 2004 Dec 31.
Article
in En
| MEDLINE
| ID: mdl-15697986
ABSTRACT
We study equilibration of strongly coupled ions in an ultracold neutral plasma produced by photoionizing laser-cooled and trapped atoms. By varying the electron temperature, we show that electron screening modifies the equilibrium ion temperature. Even with few electrons in a Debye sphere, the screening is well described by a model using a Yukawa ion-ion potential. We also observe damped oscillations of the ion kinetic energy that are a unique feature of equilibration of a strongly coupled plasma.
Search on Google
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Diagnostic_studies
/
Screening_studies
Language:
En
Journal:
Phys Rev Lett
Year:
2004
Document type:
Article
Affiliation country:
United States