| Autor: |
Yu JH; Physics Department and Institute for Pure and Applied Physical Sciences, University of California at San Diego, La Jolla, California 92093, USA., O'Neil TM, Driscoll CF |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2005 Jan 21; Vol. 94 (2), pp. 025005. Date of Electronic Publication: 2005 Jan 19. |
| DOI: |
10.1103/PhysRevLett.94.025005 |
| Abstrakt: |
Experimental observations of diocotron wave echoes on a magnetized electron column are reported, representing Kelvin wave echoes on a rotating near-ideal fluid. The echoes occur by reversal of an inviscid wave damping process, and the phase-space mixing and unmixing are directly imaged. The basic echo characteristics agree with a simple nonlinear ballistic theory. At late times, the echo is degraded, and the maximal observed echo times agree with a theory of electron-electron collisions acting on separately evolving velocity classes. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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