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Title: On the breaking of a plasma wave in a thermal plasma. I. The structure of the density singularity

Abstract

The structure of the singularity that is formed in a relativistically large amplitude plasma wave close to the wave breaking limit is found by using a simple waterbag electron distribution function. The electron density distribution in the breaking wave has a typical 'peakon' form. The maximum value of the electric field in a thermal breaking plasma is obtained and compared to the cold plasma limit. The results of computer simulations for different initial electron distribution functions are in agreement with the theoretical conclusions. The after-wavebreak regime is then examined, and a semi-analytical model of the density evolution is constructed. Finally the results of two dimensional particle in cell simulations for different initial electron distribution functions are compared, and the role of thermal effects in enhancing particle injection is noted.

Authors:
; ; ; ; ;  [1];  [2]; ;  [3]; ;  [4]
  1. QuBS, Japan Atomic Energy Agency, 1-8-7 Umemidai, Kizugawa, Kyoto 619-0215 (Japan)
  2. University of California, Berkeley, California 94720 (United States)
  3. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  4. Physics Department, University of Pisa, Pisa 56127 (Italy)
Publication Date:
OSTI Identifier:
22068904
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 19; Journal Issue: 11; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLITUDES; COLD PLASMA; COMPUTERIZED SIMULATION; DISTRIBUTION FUNCTIONS; ELECTRIC FIELDS; ELECTRON DENSITY; PLASMA SIMULATION; PLASMA WAVES; SINGULARITY; TEMPERATURE DEPENDENCE; TWO-DIMENSIONAL CALCULATIONS

Citation Formats

Bulanov, Sergei V., Esirkepov, Timur Zh., Kando, Masaki, Koga, James K., Pirozhkov, Alexander S., Nakamura, Tatsufumi, Bulanov, Stepan S., Schroeder, Carl B., Esarey, Eric, Califano, Francesco, and Pegoraro, Francesco. On the breaking of a plasma wave in a thermal plasma. I. The structure of the density singularity. United States: N. p., 2012. Web. doi:10.1063/1.4764052.
Bulanov, Sergei V., Esirkepov, Timur Zh., Kando, Masaki, Koga, James K., Pirozhkov, Alexander S., Nakamura, Tatsufumi, Bulanov, Stepan S., Schroeder, Carl B., Esarey, Eric, Califano, Francesco, & Pegoraro, Francesco. On the breaking of a plasma wave in a thermal plasma. I. The structure of the density singularity. United States. doi:10.1063/1.4764052.
Bulanov, Sergei V., Esirkepov, Timur Zh., Kando, Masaki, Koga, James K., Pirozhkov, Alexander S., Nakamura, Tatsufumi, Bulanov, Stepan S., Schroeder, Carl B., Esarey, Eric, Califano, Francesco, and Pegoraro, Francesco. Thu . "On the breaking of a plasma wave in a thermal plasma. I. The structure of the density singularity". United States. doi:10.1063/1.4764052.
@article{osti_22068904,
title = {On the breaking of a plasma wave in a thermal plasma. I. The structure of the density singularity},
author = {Bulanov, Sergei V. and Esirkepov, Timur Zh. and Kando, Masaki and Koga, James K. and Pirozhkov, Alexander S. and Nakamura, Tatsufumi and Bulanov, Stepan S. and Schroeder, Carl B. and Esarey, Eric and Califano, Francesco and Pegoraro, Francesco},
abstractNote = {The structure of the singularity that is formed in a relativistically large amplitude plasma wave close to the wave breaking limit is found by using a simple waterbag electron distribution function. The electron density distribution in the breaking wave has a typical 'peakon' form. The maximum value of the electric field in a thermal breaking plasma is obtained and compared to the cold plasma limit. The results of computer simulations for different initial electron distribution functions are in agreement with the theoretical conclusions. The after-wavebreak regime is then examined, and a semi-analytical model of the density evolution is constructed. Finally the results of two dimensional particle in cell simulations for different initial electron distribution functions are compared, and the role of thermal effects in enhancing particle injection is noted.},
doi = {10.1063/1.4764052},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 11,
volume = 19,
place = {United States},
year = {2012},
month = {11}
}