Dressed ion acoustic solitary waves in quantum plasmas with two polarity ions and relativistic electron beams

Wang, Yunliang and Dong, Yushan and Eliasson, Bengt (2013) Dressed ion acoustic solitary waves in quantum plasmas with two polarity ions and relativistic electron beams. Physics Letters A, 377 (38). pp. 2604-2609. ISSN 0375-9601

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Abstract

A theory for dressed quantum ion acoustic waves (QIAWs), which includes higher-order corrections when QIAWs are investigated by the reductive perturbation method, is presented for unmagnetized plasmas containing positive and negative ions and weakly relativistic electron beams. The properties of the QIAWs are investigated using a quantum hydrodynamic model, from which a Korteweg–de Vries equation is derived using the reductive perturbation method. An equation including higher-order dispersion and nonlinearity corrections is also derived, and the physical parameter space is discussed for the importance of these corrections