English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The excitation and breaking of relativistically intense electron-ion modes ina cold plasma is studied using 1D-fluid simulation techniques. To excite themode, we have used a relativistic rigid homogeneous electron beam propagatinginside a plasma with a velocity close to the speed of light. It is observedthat the wake wave excited by the electron beam is identical to thecorresponding Khachatryan mode, a relativistic electron-ion mode in a coldplasma. It is also seen in the simulation that the numerical profile of theexcited electron-ion mode gradually modifies with time and eventually breaksafter several plasma periods exhibiting explosive behavior in the densityprofile. This is an well known phenomena, known as wave breaking. It is foundthat the numerical wave breaking limit of these modes lies much below thantheir analytical breaking limit. The discrepancy between the numerical andanalytical wave breaking limit has been understood in terms of phase-mixingprocess of the mode. The phase mixing time (or wave breaking time) obtainedfrom the simulations has also been scaled as a function of beam parameters andfound to follow the analytical scaling.

Excitation and breaking of relativistic electron beam driven longitudinal electron-ion modes in a cold plasma