Double-layer shocks in a magnetized quantum plasma
2010 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, E-ISSN 1550-2376, Vol. 82, no 3, 037401Article in journal (Refereed) Published
The formation of small but finite amplitude electrostatic shocks in the propagation of quantum ion-acoustic waves obliquely to an external magnetic field is reported in a quantum electron-positron-ion plasma. Such shocks are seen to have double-layer (DL) structures composed of the compressive and accompanying rarefactive slow-wave fronts. Existence of such DL shocks depends critically on the quantum coupling parameter H associated with the Bohm potential and the positron to electron density ratio delta. The profiles may, however, steepen initially and reach a steady state with a number of solitary waves in front of the shocks. Such novel DL shocks could be a good candidate for particle acceleration in intense laser-solid density plasma interaction experiments as well as in compact astrophysical objects, e.g., magnetized white dwarfs.
Place, publisher, year, edition, pages
American Physical Society , 2010. Vol. 82, no 3, 037401
Fusion, Plasma and Space Physics
IdentifiersURN: urn:nbn:se:umu:diva-109742DOI: 10.1103/PhysRevE.82.037401ISI: 000281488700007PubMedID: 21230218OAI: oai:DiVA.org:umu-109742DiVA: diva2:858988