LIGHT-INDUCED SLIP

We derive the slip boundary conditions for the velocity and temperature of a one-component gas irradiated by resonant light. In contrast to standard gas kinetics the slip now already arises in zeroth order in the Knudsen number. This zeroth-order slip is therefore induced by the resonant light. Explicit expressions are found in the case of monochromatic excitation, after defining a set of accommodation coefficients that that characterize the wall collision kernel. We calculate the light-induced particle flow, pressure difference and heat flow, which arise from the zeroth-order slip.