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Adiabatic nonlinear waves with trapped particles: Part II. Wave dispersion
Adiabatic nonlinear waves trapped particles Wave dispersion
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2011/8/4
Abstract: A general nonlinear dispersion relation is derived in a nondifferential form for a quasistationary sinusoidal Langmuir wave in collisionless plasma, allowing for an arbitrary distribution of...
Towards the construction of a model to describe the inter-ELM evolution of the pedestal on MAST
the construction of a model the inter-ELM evolution of the pedestal MAST
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2011/8/4
Abstract: Pedestal profiles that span the ELM cycle have been obtained and used to test the idea that the pedestal pressure gradient in MAST is limited by the onset of Kinetic Ballooning Modes (KBMs)....
Adiabatic nonlinear waves with trapped particles: Part III. Wave dynamics
Adiabatic nonlinear waves trapped particles Wave dynamics
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2011/8/4
Abstract: The evolution of waves with trapped particles is described within the Lagrangian model developed in Paper I. One-dimensional nonlinear Langmuir waves with deeply trapped electrons are addres...
Ponderomotive forces and wave dispersion: two sides of the same coin
ponderomotive forces wave dispersion Plasma Physics
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2011/10/8
Abstract: Presented here is a general view on adiabatic and resonant wave-particle interactions leading to a uniform description of nonlinear ponderomotive effects in very different environments, from...
Effect of a plasma grating on pump-probe experiments near the ionization threshold in gases
plasma pump-probe experiments ionization threshold gases
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2011/8/4
Abstract: Calculations are performed of the phase shift caused by the spatial modulation in the plasma density due to interference between a strong pump pulse and a weak probe pulse. It is suggested t...
Scaling and intermittency in incoherent α-shear dynamo
Dynamo magnetic fields MHD turbulence
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2011/8/17
Abstract: We consider mean-field dynamo models with fluctuating \alpha effect, both with and without shear. The \alpha effect is chosen to be Gaussian white noise with zero mean and given covariance. ...
Comment on "Interaction of two solitary waves in quantum electron-positron-ion plasma" [Phys. Plasmas \textbf{18}, 052301 (2011)]
two solitary waves quantum electron-positron-ion plasma
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2011/8/4
Abstract: Recently, Yan-Xia Xu, et al. in the article Ref. [Phys. Plasmas \textbf{18}, 052301 (2011)] have studied the effects of various plasma parameters on interaction of two ion-acoustic solitary ...
One-dimensional vertical dust strings in a glass box
One-dimensional vertical dust strings glass box Plasma Physics
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2011/8/4
Abstract: The oscillation spectrum of a one-dimensional vertical dust string formed inside a glass box on top of the lower electrode in a GEC reference cell was studied. A mechanism for creating a sin...
Drift wave turbulence in a dense semiclassical magnetoplasma
Drift wave turbulence semiclassical magnetoplasma Plasma Physics
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2011/8/3
Abstract: A semiclassical nonlinear collisional drift wave model for dense magnetized plasmas is developed and solved numerically. The effects of fluid electron density fluctuations associated with qu...
Dense monoenergetic proton beams from chirped laser-plasma interaction
monoenergetic proton beams laser-plasma interaction Plasma Physics
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2011/8/3
Abstract: Interaction of a frequency-chirped laser pulse with single protons and a hydrogen plasma cell is studied analytically and by means of particle-in-cell simulations, respectively. Feasibility ...
Dust particle charge in plasma with ion flow and electron depletion
Complex plasma dust charging dust levitation RF discharge
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2011/8/2
Abstract: The charge of micrometer-sized dust particles suspended in plasma above the powered electrode of radio-frequency (RF) discharges is studied. Using a self-consistent fluid model, the plasma p...
Impurity transport in temperature gradient driven turbulence
Impurity transport temperature gradient driven turbulence Plasma Physics
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2011/8/2
Abstract: In the present paper the transport of impurities by TE and ITG mode driven turbulence is studied. Results obtained using a multi-fluid model are compared with quasilinear (QL) and nonlinear ...
A Generalized Flux Function for Three-dimensional Magnetic Reconnection
Generalized Flux Function Three-dimensional Magnetic Reconnection Plasma Physics
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2011/8/2
Abstract: The definition and measurement of magnetic reconnection in three-dimensional magnetic fields with multiple reconnection sites is a challenging problem, particularly in fields lacking null po...
Self-similar analytical model of the plasma expansion in a magnetic field
Plasma expansion Self-similar model Magnetic field Plasma Physics
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2011/8/2
Abstract: The study of hot plasma expansion in a magnetic field is of interest for many astrophysical applications. In order to observe this process in laboratory, an experiment is proposed in which a...
Charging of Interstellar Dust Grains Near the Heliopause
Charg Interstellar Dust Grains Heliopause Plasma Physics
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2011/8/2
Abstract: The deflection of interstellar dust grains in the magnetic field near the heliopause has been investigated based on the assumption that interstellar grains are homogeneous spheres.