Electrostatic drift waves in nonuniform quantum magnetized plasmas

Zhengwei Wu; Haijun Ren; Jintao Cao; Chu, Paul K.
August 2008
Physics of Plasmas;Aug2008, Vol. 15 Issue 8, p082103
Academic Journal
Electrostatic drift waves (EDWs) in nonuniform quantum magnetized plasmas are described by the quantum hydrodynamic model. Electrons are viewed as a low-temperature Fermi gas. Analytical expression of the dispersion relationship of the quantum EDW is presented. Quantum effects are shown to affect the dispersion of the EDW significantly. The effects on the dispersion relation due to the magnetic field and spatial inhomogeneity give rise to results similar to the classical case. Our results should be relevant to dense astrophysical objects, e.g., neutron stars, magnet-stars, and white dwarfs.


Related Articles

  • Experimental studies of zonal flow and field in compact helical system plasma. Fujisawa, A.; Itoh, K.; Shimizu, A.; Nakano, H.; Ohshima, S.; Iguchi, H.; Matsuoka, K.; Okamura, S.; Minami, T.; Yoshimura, Y.; Nagaoka, K.; Ida, K.; Toi, K.; Takahashi, C.; Kojima, M.; Nishimura, S.; Isobe, M.; Suzuki, C.; Akiyama, T.; Ido, T. // Physics of Plasmas;May2008, Vol. 15 Issue 5, p055906 

    The experimental studies on zonal flows and turbulence have been carried out in Compact Helical System [K. Matsuoka, S. Kubo, M. Hosokawa et al., in Plasma Physics and Controlled Nuclear Fusion Research, Proc. 12th Int. Conf., Nice, 1988 (International Atomic Energy Agency, Vienna, 1989, Vol. 2,...

  • Thermonuclear Plasma Confinement with Thermomagnetic Currents Generated by Nuclear Reactions from Fusion Neutrons. Winterberg, F. // AIP Conference Proceedings;2006, Vol. 875 Issue 1, p89 

    The idea presented here is to use the neutrons released from a thermonuclear plasma to drive currents by the thermomagnetic Nernst effect through neutron-induced nuclear reactions in a light nuclei containing plasma corona surrounding the thermonuclear plasma. To increase the nuclear cross...

  • Drift Wave Turbulence. Horton, W.; Kim, J.-H.; Asp, E.; Hoang, T.; Watanabe, T.-H.; Sugama, H. // AIP Conference Proceedings;5/14/2008, Vol. 1013 Issue 1, p1 

    Drift waves occur universally in magnetized plasmas producing the dominant mechanism for transport of particles, energy and momentum across magnetic field lines. A wealth of information obtained from laboratory experiments for plasma confinement is reviewed for drift waves driven unstable by...

  • Nonlinear electrostatic drift waves in dense electron-positron-ion plasmas. Haque, Q.; Mahmood, S.; Mushtaq, A. // Physics of Plasmas;Aug2008, Vol. 15 Issue 8, p082315 

    The Korteweg–de Vries–Burgers (KdVB)-type equation is obtained using the quantum hydrodynamic model in an inhomogeneous electron-positron-ion quantum magnetoplasma with neutral particles in the background. The KdV-type solitary waves, Burgers-type monotonic, and oscillatory shock...

  • Spatiotemporal control and synchronization of flute modes and drift waves in a magnetized plasma column. Brochard, F.; Bonhomme, G.; Gravier, E.; Oldenbürger, S.; Philipp, M. // Physics of Plasmas;May2006, Vol. 13 Issue 5, p052510 

    An open-loop spatiotemporal synchronization method is applied to flute modes in a cylindrical magnetized plasma. It is demonstrated that synchronization can be achieved only if the exciter signal rotates in the same direction as the propagating mode. Moreover, the efficiency of the...

  • Drift wave instability in the Helimak experiment. Perez, Jean C.; Horton, W.; Gentle, K.; Rowan, W. L.; Lee, K.; Dahlburg, Russell B. // Physics of Plasmas;Mar2006, Vol. 13 Issue 3, p032101 

    Electrostatic drift wave linear stability analysis is carried out for the Helimak configuration and compared against experimental data. Density fluctuation and cross-spectrum measurements show evidence of a coherent mode propagating perpendicular to the magnetic field which becomes unstable at...

  • Nonlinear mechanisms for drift wave saturation and induced particle transport. Dimits, A. M.; Lee, W. W. // Physics of Fluids B: Plasma Physics;Jul91, Vol. 3 Issue 7, p1557 

    In previous studies, it was shown that, in the nonlinearly saturated phase of the evolution of drift instabilities in gyrokinetic particle simulations, the saturation levels and especially the particle fluxes are significantly less than predicted by quasilinear theory, and have an unexpected...

  • Effects of the New Island Divertor on the Plasma Performance in the W7-AS Stellarator. Grigull, P.; McCormick, K.; Baldzuhn, J.; Burhenn, R.; Brakel, R.; Ehmler, H.; Feng, Y.; Gadelmeier, F.; Giannone, L.; Hartmann, D.; Hildebrandt, D.; Hirsch, M.; Jaenicke, R.; Kisslinger, J.; Klinger, T.; Knauer, J.; König, R.; Naujoks, D.; Niedermeyer, H. // AIP Conference Proceedings;2003, Vol. 669 Issue 1, p166 

    The island divertor in the W7-AS stellarator enables access to a new NBI-heated, high density operating regime with promising confinement properties. This regime -- the High Density H-Mode -- displays no evident mode activity, is extant above a threshold density and characterized by flat density...

  • Conceptual design and numerical simulation of a correlation diagnostic for measurement of magnetic fluctuations in plasmas. Thomas, C. E.; Hanson, G. R.; Gandy, R. F.; Batchelor, D. B.; Goldfinger, R. C. // Review of Scientific Instruments;Sep88, Vol. 59 Issue 9, p1990 

    It has been previously suggested that crossed-sightline correlation of electron cylotron emission might be used to measure magnetic fluctuations in high-temperature plasmas. Reported here are the results of a continuing project to determine under what conditions (if any) this measurement will be...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics