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Title: Electrostatic twisted modes in multi-component dusty plasmas

Various electrostatic twisted modes are re-investigated with finite orbital angular momentum in an unmagnetized collisionless multi-component dusty plasma, consisting of positive/negative charged dust particles, ions, and electrons. For this purpose, hydrodynamical equations are employed to obtain paraxial equations in terms of density perturbations, while assuming the Gaussian and Laguerre-Gaussian (LG) beam solutions. Specifically, approximated solutions for potential problem are studied by using the paraxial approximation and expressed the electric field components in terms of LG functions. The energy fluxes associated with these modes are computed and corresponding expressions for orbital angular momenta are derived. Numerical analyses reveal that radial/angular mode numbers as well as dust number density and dust charging states strongly modify the LG potential profiles attributed to different electrostatic modes. Our results are important for understanding particle transport and energy transfer due to wave excitations in multi-component dusty plasmas.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5]
  1. Theoretical Plasma Physics Division, PINSTECH, P. O. Nilore, Islamabad (Pakistan)
  2. (Pakistan)
  3. (Korea, Republic of)
  4. National Centre for Physics, Shahdra Valley Road, Quaid-i-Azam University Campus, Islamabad 44000 (Pakistan)
  5. Department of Physics, Hazara University, Mansehra 21300 (Pakistan)
Publication Date:
OSTI Identifier:
22493866
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 1; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; APPROXIMATIONS; BEAMS; CHARGED-PARTICLE TRANSPORT; DENSITY; DISTURBANCES; ELECTRIC FIELDS; ELECTRONS; ENERGY TRANSFER; EXCITATION; HYDRODYNAMICS; IONS; MATHEMATICAL SOLUTIONS; NUMERICAL ANALYSIS; ORBITAL ANGULAR MOMENTUM; PLASMA