Numerical Study of Anomalous Resistivity in Electron-Positron Plasmas

概要

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We ntrmerically calcttlate anornalous resistivity in electron-positron plastnas with a constantexternal electric field. The external electric field can atccelerate particles to create a IIIIINVO.}'distribution for electrons and positrons. Dtre to the counterstreanaing of' electrons and positronsby the acceleration frorn the external electric field the Bunernan instability with both longittr-dinal rnodes and transverse taaodes is excited. Plastaaas are destabilized throvrgh wave-particleinteraction. The effective collision I'reqtrency, which sets the anotnalous resistivity, increases pro-portionally with the drift velocity in tlue IOXV drif't velocity regirne. For l;trger drift velocities theelective collision freqtrency increases only weakly as ftrrther iracreases in the drift velocity.
社団法人日本物理学会の論文
1997-10-15