| Issue |
Europhys. Lett.
Volume 54, Number 6, June II 2001
|
|
|---|---|---|
| Page(s) | 741 - 746 | |
| Section | Physics of gases, plasmas, and electric discharges | |
| DOI | https://doi.org/10.1209/epl/i2001-00315-2 | |
| Published online | 01 December 2003 | |
Chargeons and phonons in a dusty plasma
1
GoLP/Centro de
Física de Plasmas, Instituto Superior Técnico 1049-001
Lisboa, Portugal
2
Theoretical Physics Division,
Physical Research Laboratory Navrangpura, Ahmedabad 380009,
India
Received:
13
October
2000
Accepted:
29
March
2001
The quantization procedure for low-frequency modes in a plasma has been generalized to include dust-Coulomb waves (DCWs) which are driven by the grain charge oscillations in a dusty plasma. We thus introduce the concept of "chargeon", the elementary excitation of the ultra low-frequency electrostatic fields in a dusty plasma, which are mainly supported by the grain charge oscillations. Their characteristic features are similar to the usual phonons, but they correspond to very different physical properties of the medium.
PACS: 52.35.Fp – Electrostatic waves and oscillations (e.g., ion-acoustic waves) / 03.70.+k – Theory of quantized fields
© EDP Sciences, 2001
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