NLSE for quantum plasmas with the radiation damping
Abstract
We consider contribution of the radiation damping in the quantum hydrodynamic (QHD) equations for spinless particles. We discuss possibility of obtaining corresponding nonlinear Schrödinger equation (NLSE) for the macroscopic wave function. We compare contribution of the radiation damping with weakly (or semi-) relativistic effects appearing in the second-order on . The radiation damping appears in the third-order on . So it might be smaller than weakly relativistic effects, but it gives damping of the Langmuir waves which can be considerable.