09 بهمن 1401
تقي محسن پور

تقی محسن پور

مرتبه علمی: دانشیار
نشانی: گروه فیزیک دانشگاه مازندران
تحصیلات: دکترای تخصصی / فیزیک پلاسما
تلفن: 01135302480
دانشکده: دانشکده علوم پایه

مشخصات پژوهش

عنوان Obliquely propagating quantum solitary waves in quantum‐magnetized plasma with ultra‐relativistic degenerate electrons and positrons
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
quantum plasma, solitary waves, ultra‐relativistic, degenerate electrons
مجله CONTRIBUTIONS TO PLASMA PHYSICS
شناسه DOI 10.1002/ctpp.201900038
پژوهشگران حمید سلطانی (نفر اول) ، تقی محسن پور (نفر دوم) ، فرشاد صحبت زاده لنبر (نفر سوم)

چکیده

The oblique propagation of the quantum electrostatic solitary waves in magnetized relativistic quantum plasma is investigated using the quantum hydrodynamic equations. The plasma consists of dynamic relativistic degenerate electrons and positrons and a weakly relativistic ion beam. The Zakharov‐Kuznetsov equation is derived using the standard reductive perturbation technique that admits an obliquely propagating soliton solution. It is found that two types of quantum acoustic modes, that is, a slow acoustic mode and fast acoustic mode, could be propagated in our plasma model. The parameter that determines the nature of soliton, that is, compressive or rarefactive soliton, for slow mode is investigated. Our numerical results show that for the slow mode, the determining parameter is ion beam velocity in the case of relativistic degenerate electrons. We also have examined the effects of plasma parameters (like the beam velocity, the density ratio of positron to electron, the relativistic factor, and the propagation angle) on the characteristics of solitary waves.