Non-linear electrostatic waves in pair-ion plasmas - National Centre ...
Non-linear electrostatic waves in pair-ion plasmas - National Centre ...
Non-linear electrostatic waves in pair-ion plasmas - National Centre ...
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<strong>Non</strong><strong>l<strong>in</strong>ear</strong> Electrostatic Waves <strong>in</strong> Pair-<strong>ion</strong> Plasmas (contd.)If T +≠T -, then soliton solut<strong>ion</strong> of Eq.(12) is given bywhere( 1)2 ⎛ η ⎞Φ = φ msec h ⎜ ⎟⎝ W ⎠φm= 3u0/ A(13)(amplitude of the soliton)W 4B/u=0(width of the soliton)Transformed variableη = ξ − u 0τhas been def<strong>in</strong>ed.The velocity of the transformed frame u 0has been normalized with thermalvelocity of positive <strong>ion</strong>.19