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 ...

13.07.2015 Views

Dissipative shocks and solitons in Pair-ion PlasmasUsing transformationζ = k( ξ + χ −Uτ ),the solution of KPB equation is given by,hereϕ(ζ , χ,τ )k=C10B=Soliton solution625+3252C ⎡⎢1− tan hAB ⎣2C ⎡⎢sechAB ⎣2C10BC10B2⎧ 6C× ⎨ζ+ χ − (⎩ 25B2⎧ 6C× ⎨ζ+ χ − (⎩ 25B⎫⎤+ D)τ ⎬⎥⎭⎦⎫⎤+ D)τ ⎬⎥⎭⎦(wave number of nonlinear wave) has been defined.(21)The KP equation is obtained by putting C=0 in KPB equation, which givessoliton solution such aswhere12Bϕ(ζ , χ,τ ) = sechAU = −( 4B+ D)2, λ =[ ζ + χ −Uτ]+ β2andTβ =T1 -+(22)have been defined.30

Dissipative shocks and solitons in Pair-ion PlasmasTβ = -T+For β=1.4 (left)and β=1.6 (right)T −> T +For β=0.8 (left)and β=0.6 (right)T −> T +η0 += 0.15/2η = 0 −η0+(β )31

Dissipative shocks and solitons <strong>in</strong> Pair-<strong>ion</strong> PlasmasTβ = -T+For β=1.4 (left)and β=1.6 (right)T −> T +For β=0.8 (left)and β=0.6 (right)T −> T +η0 += 0.15/2η = 0 −η0+(β )31

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