Cold plasma theory is used to calculate the response of an ultracold neutral plasma to an applied rf field. The free oscillation of the system has a continuous spectrum and an associated damped quasimode. This quasimode dominates the driven response and is resonant in the tail of the density distribution. Recent experiments used the plasma response to an applied rf field to determine the plasma...

background and objectives: biomaterials are widely used in medical devices such as urinary catheters. one of the main problems associated with long term using of the urinary catheters is biofilm formation on their surfaces. many techniques have been presented to reduce the biofilm formation. one of the most revolutionary techniques allowing such surface fictionalization is plasma surface modific...

We study string theory duals of the expanding boost invariant conformal gauge theory plasmas at strong coupling. The dual supergravity background is constructed as an asymptotic late-time expansion, corresponding to equilibration of the gauge theory plasma. The absence of curvature singularities in the first few orders of the late-time expansion of the dual gravitational background unambiguousl...

Recently Liu, Rajagopal and Wiedemann (LRW) [1] proposed a first principle, nonperturbative quantum field theoretic definition of “jet quenching parameter” q̂ used in models of medium-induced radiative parton energy loss in nucleus-nucleus collisions at RHIC. Relating q̂ to a short-distance behavior of a certain light-like Wilson loop, they used gauge theory-string theory correspondence to evalua...