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| Titel |
Interaction dynamics of electrostatic solitary waves |
| VerfasserIn |
V. L. Krasovsky, H. Matsumoto, Y. Omura |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 6, no. 3/4 ; Nr. 6, no. 3/4, S.205-209 |
| Datensatznummer |
250003225
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| Publikation (Nr.) |
 copernicus.org/npg-6-205-1999.pdf |
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| Zusammenfassung |
| Interaction of nonlinear
electrostatic pulses associated with electron phase density holes moving in a
collisionless plasma is studied. An elementary event of the interaction is
analyzed on the basis of the energy balance in the system consisting of two
electrostatic solitary waves. It is established that an intrinsic property of
the system is a specific irreversibility caused by a nonadiabatic modification
of the internal structure of the holes and their effective heating in the
process of the interaction. This dynamical irreversibility is closely connected
with phase mixing of the trapped electrons comprising the holes and oscillating
in the varying self-consistent potential wells. As a consequence of the
irreversibility, the "collisions" of the solitary waves should be
treated as "inelastic" ones. This explains the general tendency to the
merging of the phase density holes frequently observed in numerical simulation
and to corresponding coupling of the solitary waves. |
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