<scp>Beam</scp> ‐Driven Rayleigh Taylor Instability in Strongly Coupled Dusty Plasma

ABSTRACT The evolution of Rayleigh Taylor instability (RTI) in a strongly correlated dusty plasma driven by an ion beam has been investigated through the Generalised Hydrodynamic (GHD) Model. The instability analysis focuses on the effects of beam velocity, beam density, density scale length and strong coupling parameters on the instability growth rate and frequency. The ion beam enhances the pressure imbalance across the interface, thereby driving the RTI, while the viscoelastic response of the strongly coupled medium introduces a stabilizing influence. It has been observed that the growth rate of ion beam driven RTI is suppressed with increasing coupling strength and magnetic field, while the instability grows with higher beam density and velocity enhances the instability, density scale length and beam density. These results provide insight into controlling beam‐induced RTI in complex plasmas and are relevant to inertial confinement fusion (ICF), astrophysical dusty plasmas.