Superfluidlike motion of an absorbing body in a collisional plasma |
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Authors: | Vladimirov S V Khrapak S A Chaudhuri M Morfill G E |
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Affiliation: | School of Physics, The University of Sydney, New South Wales 2006, Australia. |
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Abstract: | Motion of a small charged absorbing body (micrograin) immersed in a stationary weakly ionized high pressure plasma environment is considered. It is shown that the total frictional (drag) force acting on the grain can be directed along its motion, causing the grain acceleration. At some velocity, the forces associated with different plasma components can balance each other, allowing free undamped superfluid motion of the grain. The conditions when such behavior can be realized and the possibility of a superconductive grain current are discussed in the context of complex (dusty) plasmas. |
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