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Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Jan;89(1):013110. Epub 2014 Jan 31.

Head-on collision of dust-acoustic solitons in a strongly coupled dusty plasma.

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  • 1Physical Sciences Division, Institute of Advanced Study in Science & Technology Paschim Boragaon, Guwahati-781035, India.


The collision between two counterpropagating dust acoustic solitary waves in a strongly coupled dusty plasma has been observed. The measured velocity and width of the solitary wave agree with the solution of the Korteweg-de Vries equation derived by using the generalized hydrodynamic model. The two counterpropagating solitary waves of equal amplitude merge into a single pulse with twice the individual soliton amplitude and then pass through each other. The solitons suffer a small time delay in propagation after collision. The measured delay time obtained from their trajectories is also presented.

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