| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000388382 |
| ISSN: | 0103-9733 |
| Authors: | Saha, Asit1 Chatterjee, Prasanta2 |
| Institutions: | 1Sikkim Manipal Institute of Technology, Department of Mathematics, Rangpo, East-Sikkim. India 2Visva Bharati University, Department of Mathematics, Santiniketan, West Bengal. India |
| Year: | 2015 |
| Season: | Ago |
| Volumen: | 45 |
| Number: | 4 |
| Pages: | 419-426 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, analítico |
| English abstract | The solitonic, periodic, and quasiperiodic behaviors of dust ion acoustic waves in superthermal plasmas with q-nonextensive electrons are studied using the bifurcation theory of planar dynamical systems through direct approach. Using a Galilean transformation, model equations are transformed to a Hamiltonian system involving electrostatic potential. The existence of solitary and periodic waves is shown for the unperturbed Hamiltonian system. Analytical forms of these waves are presented depending on physical parameters q and μ. The effects of q and μ are studied on characteristics of nonlinear dust ion acoustic solitary and periodic waves. It is observed that parameters q and μ significantly influence the characteristics of nonlinear dust ion acoustic solitary and periodic structures. Considering an external periodic perturbation, the quasiperiodic behavior of the perturbed Hamiltonian system for dust ion acoustic waves is studied. It is seen that the unperturbed Hamiltonian system has the solitary and periodic wave solutions whereas the perturbed Hamiltonian system has quasiperiodic motion for same values of parameters q,μ and v |
| Disciplines: | Física y astronomía |
| Keyword: | Teoría cinética y plasmas, Ondas solitarias, Ondas periódicas, Plasmas de polvo, Electrones no extensivos, Ondas acústicas de polvo |
| Keyword: | Physics and astronomy, Kinetic theory and plasma, Solitary waves, Periodic waves, Dusty plasmas, Nonextensive electrons, Dust-acoustic waves |
| Full text: | Texto completo (Ver HTML) |
