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Onset of Negative Dispersion in the One-Component Plasma

Abstract:
We have carried out molecular dynamics (MD) simulations in order to investigate the onset of negative dispersion of the plasmon mode in the classical one-component plasma (OCP). We find that negative dispersion sets in at a Coulomb coupling strength of Γ∼9.5-10. A good quantitative agreement is obtained with an existing theoretical treatment of the dispersion relation that is based on a memory function approach to the dynamics of the OCP. © 2012 American Institute of Physics.
Publication status:
Published

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Publisher copy:
10.1063/1.3679586

Authors


Mithen, JP More by this author
Daligault, J More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atomic and Laser Physics
Volume:
1421
Pages:
68-72
Publication date:
2011
DOI:
EISSN:
1551-7616
ISSN:
0094-243X
URN:
uuid:ba320d8f-54f1-497f-b850-c70fcd7711dd
Source identifiers:
322883
Local pid:
pubs:322883
ISBN:
9780735409996

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