Modulational instability of ion-acoustic (IA) waves is investigated in an unmagnetized quantum plasma by adopting equation state for Fermi electron gas. To this end, a basic set one-dimensional hydrodynamic equations reduced to nonlinear Schrödinger using the reductive perturbation method. Quantum corrections are described nondimensional parameter H proportional diffraction parameter. Based on ...

Fast camera imaging is used to study ion acoustic waves propagating azimuthally in a magnetized plasma column. The high-speed image sequences are analyzed using proper orthogonal decomposition and 2D Fourier transform, allowing evaluate the assets differences of both techniques. spatiotemporal features extracted from images, which highlight energy exchanges between modes. Growth rates modes rec...

A theoretical investigation has been carried out on the propagation of non-linear ion-acoustic shock waves (IASHWs) in a magnetized degenerate quantum plasma system composed inertial non-relativistic positively charged light and heavy ions, inertialess non-relativistically or ultra-relativistically electrons positrons. The reductive perturbation method employed to derive Burgers' equation. It o...