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Title: Jeans instability with exchange effects in quantum dusty magnetoplasmas

Jeans instability is examined in magnetized quantum dusty plasmas using the quantum hydrodynamic model. The quantum effects are considered via exchange-correlation potential, recoil effect, and Fermi degenerate pressure, in addition to thermal effects of plasma species. It is found that the electron exchange and correlation potential have significant effects over the threshold value of wave vector and Jeans instability. The presence of electron exchange and correlation effect shortens the time of dust sound that comparatively stabilizes the self gravitational collapse. The results at quantum scale are helpful in understanding the collapse of the self-gravitating dusty plasma systems.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5]
  1. Department of Physics, COMSATS Institute of Information Technology, Lahore 54000 (Pakistan)
  2. Department of Physics, Government College University, Faisalabad 38000 (Pakistan)
  3. Department of Physics, Lahore College for Women University, Lahore 54000 (Pakistan)
  4. Department of Applied Physics and Department of Bionanotechnology, Hanyang University, Ansan, Kyunggi-Do 426-791 (Korea, Republic of)
  5. Department of Physics, Jahangirnagar University, Savar, Dhaka 1342 (Bangladesh)
Publication Date:
OSTI Identifier:
22490034
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 8; Other Information: (c) 2015 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; COSMIC DUST; ELECTRON EXCHANGE; GRAVITATIONAL COLLAPSE; HYDRODYNAMIC MODEL; PLASMA; PLASMA INSTABILITY; QUANTUM MECHANICS; RECOILS; SOUND WAVES; TEMPERATURE DEPENDENCE