Electrostatic drift vortices in quantum magnetoplasmas

Haque, Q.
September 2008
Physics of Plasmas;Sep2008, Vol. 15 Issue 9, p094502
Academic Journal
A nonlinear equation similar to the Hasegawa–Mima equation for drift waves in dense quantum plasmas has been obtained. Therefore, electrostatic drift vortices can appear in nonuniform dense magnetoplasmas. These nonlinear structures can be of dipolar form as well as street-type vortices. It is noticed that these structures are formed on very short spatial scales. Further, it is discussed that quantum drift waves can couple with quantum ion acoustic waves, like classical plasmas, if the ion parallel dynamics is also considered.


Related Articles

  • Drift wave driven zonal flows in plasmas. Kaladze, T. D.; Wu, D. J.; Pokhotelov, O. A.; Sagdeev, R. Z.; Stenflo, L.; Shukla, P. K. // Physics of Plasmas;Dec2005, Vol. 12 Issue 12, p122311 

    The generation of large-scale zonal flows by small-scale electrostatic drift waves in a plasma is considered. The generation mechanism is based on the parametric excitation of convective cells by finite amplitude drift waves. To describe this process a generalized Hasegawa–Mima equation...

  • Linear study of the nonmodal growth of drift waves in dusty plasmas. Manz, P.; Greiner, F. // Physics of Plasmas;Jun2010, Vol. 17 Issue 6, p063703 

    The main effect of dust on drift wave turbulence is the enhancement of the nonadiabaticity. Previous work found that nonmodal behavior is important in the nonadiabatic regime of the drift wave system. Here, the modal and nonmodal properties of the linear Hasegawa–Wakatani system of dusty...

  • Observation of Ion Acoustic Waves Excited by Drift Waves in a Weakly Magnetized Plasma. Tsukabayashi, Isao; Sato, Sugiya; Nakamura, Yoshiharu // AIP Conference Proceedings;2003, Vol. 669 Issue 1, p121 

    Spontaneous fluctuations excited by drift waves are investigated experimentally in magnetic multi-pole plasma. The magnetic multi-pole has been widely used in DP devices and so on. It was observed that the high level of density fluctuations was generated by the drift instability near a magnetic...

  • The role of coherent vorticity in turbulent transport in resistive drift-wave turbulence. Bos, W. J. T.; Futatani, S.; Benkadda, S.; Farge, M.; Schneider, K. // Physics of Plasmas;Jul2008, Vol. 15 Issue 7, p072305 

    The coherent vortex extraction method, a wavelet technique for extracting coherent vortices out of turbulent flows, is applied to simulations of resistive drift-wave turbulence in magnetized plasma (Hasegawa–Wakatani system). The aim is to retain only the essential degrees of freedom,...

  • Generation of electromagnetic structures via modulational instability of drift waves. Smolyakov, A. I.; Krasheninnikov, S. I. // Physics of Plasmas;Jul2008, Vol. 15 Issue 7, p072302 

    Generation mechanism for large scale electromagnetic structures (blobs) is considered by employing the technique of four-wave interactions (modulational instability). It is shown that primary electrostatic turbulence may generate elongated electromagnetic structures with poloidal modulations....

  • Amplification of ion acoustic wave in an inhomogeneous plasma through nonlinear wave-particle interaction with drift wave turbulence. Deka, P. N.; Borgohain, A. // Physics of Plasmas;Apr2011, Vol. 18 Issue 4, p042311 

    A study on the amplification of ion acoustic wave in an inhomogeneous plasma has been made on the basis of a nonlinear wave-particle interaction process called plasma maser effect. The drift wave instability, which is a universal phenomenon of an inhomogeneous confined plasma system, is found to...

  • Spatiotemporal multiscaling analysis of impurity transport in plasma turbulence using proper orthogonal decomposition. Futatani, S.; Benkadda, S.; del-Castillo-Negrete, D. // Physics of Plasmas;Apr2009, Vol. 16 Issue 4, p042506 

    The spatiotemporal multiscale dynamics of the turbulent transport of impurities is studied in the context of the collisional drift wave turbulence. Two turbulence regimes are considered: a quasihydrodynamic regime and a quasiadiabatic regime. The impurity is assumed to be a passive scalar...

  • High frequency instability of a magnetized spherical electron sheath. Stenzel, R. L. // Physics of Plasmas;Jun2010, Vol. 17 Issue 6, p062109 

    A positively biased spherical electrode in a magnetized plasma exhibits a ring of energetic electrons in the equatorial plane where the sheath electric field is normal to the magnetic field. High frequency waves are excited which propagate with the average E×B drift and form toroidal...

  • Poloidal momentum transport due to drift-waves in toroidal geometry. Staebler, G.M. // Physics of Plasmas;Mar2004, Vol. 11 Issue 3, p1064 

    The aim of this paper is to provide the theoretical framework for a quasi-linear drift-wave model of poloidal and toroidal momentum transport in magnetically confined plasmas in toroidal geometry. Axisymmetry is not required. The new feature is the inclusion of poloidal flow in the coupled...


Read the Article


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

Try another library?
Sign out of this library

Other Topics