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Nondrifting relativistic electromagnetic solitons in plasmas

  • M. LONTANO (a1), M. BORGHESI (a2), S.V. BULANOV (a3) (a4), T.Z. ESIRKEPOV (a4), D. FARINA (a1), N. NAUMOVA (a5), K. NISHIHARA (a6), M. PASSONI (a1) (a7), F. PEGORARO (a8), H. RUHL (a9), A.S. SAKHAROV (a3) and O. WILLI (a10)...

Abstract

Low-frequency, relativistic, subcycle solitary waves are found in two-dimensional and three-dimensional particle-in-cell (PIC) numerical simulations, as a result of the interaction of ultrashort, high-intensity laser pulses with plasmas. Moreover, nondrifting, subcycle relativistic electromagnetic solitons have been obtained as solutions of the hydrodynamic equations for an electron–ion warm plasma, by assuming the quasi-neutrality character of the plasma response. In addition, the formation of long-living macroscopic soliton-like structures has been experimentally observed by means of the proton imaging diagnostics. Several common features result from these investigations, as, for example, the quasi-neutral plasma response to the soliton radiation, in the long-term evolution of the system, which leads to the almost complete expulsion of the plasma from the region where the electromagnetic radiation is concentrated, even at subrelativistic field intensity. The results of the theoretical investigations are reviewed with special attention to these similarities.

Copyright

Corresponding author

Address correspondence and reprint requests to: M. Borghesi, The Queen's University of Belfast, Department of Pure and Applied Physics, Belfast BT7 1NN, United Kingdom. E-mail: m.borghesi@qub.ac.uk

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Keywords

Nondrifting relativistic electromagnetic solitons in plasmas

  • M. LONTANO (a1), M. BORGHESI (a2), S.V. BULANOV (a3) (a4), T.Z. ESIRKEPOV (a4), D. FARINA (a1), N. NAUMOVA (a5), K. NISHIHARA (a6), M. PASSONI (a1) (a7), F. PEGORARO (a8), H. RUHL (a9), A.S. SAKHAROV (a3) and O. WILLI (a10)...

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