| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000389448 |
| ISSN: | 0103-9733 |
| Authors: | Saha, Asit1 Chatterjee, Prasanta2 Wong, C.S3 |
| Institutions: | 1Sikkim Manipal Institute of Technology, Department of Mathematics, Rangpo, East-Sikkim. India 2Visva Bharati University, Department of Mathematics, Santiniketan, West Bengal. India 3University of Malaya, Plasma Technology Research Centre, Kuala, Lumpur. Malasia |
| Year: | 2015 |
| Season: | Dic |
| Volumen: | 45 |
| Number: | 6 |
| Pages: | 656-663 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The dynamic motions of ion acoustic waves an unmagnetized plasma with superthermal (q-nonextensive) electrons are investigated employing the bifurcation theory of planar dynamical systems through direct approach. Using traveling wave transformation and initial conditions, basic equations are transformed to a planar dynamical system. Using numerical computations, all possible phase portraits of the dynamical system are presented. Corresponding to homoclinic and periodic orbits of the phase portraits, two new analytical forms of solitary and periodic wave solutions are derived depending on the nonextensive parameter q and speed v of the traveling wave. Considering an external periodic perturbation, the quasiperiodic and chaotic motions of ion acoustic waves are presented. Depending upon different ranges of nonextensive parameter q, the effect of q is shown on quasiperiodic and chaotic motions of ion acoustic waves with fixed value of v. It is seen that the unperturbed dynamical system has the solitary and periodic wave solutions, but the perturbed dynamical system has the quasiperiodic and chaotic motions with same values of parameters q and v |
| Disciplines: | Física y astronomía |
| Keyword: | Teoría cinética y plasmas, Onda iónica acústica, Ondas periódicas, Plasma, Electrones supertérmicos, Cuasiperiodicidad |
| Keyword: | Physics and astronomy, Kinetic theory and plasma, Ion acoustic wave, Periodic waves, Plasma, Superthermal electrons, Quasiperiodicity |
| Full text: | Texto completo (Ver PDF) |
