| 1. |
- Anderson, D., et al.
(författare)
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Collapse of optical vacuum pulses due to QED nonlinearities
- 2002
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Ingår i: Nonlinear Guided Waves and Their Applications, 1–4 September 2002, Stresa, Italy. - : Optics Info Base, Optical Society of America. - 1557527237
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Due to quantum electrodynamical (QED) effects there are nonlinear corrections to Maxwell's equations in vacuum. We show that stationary two-dimensional light bullets can form, which are unstable and exhibit, the possibility of self-focusing collapse.
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| 2. |
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| 3. |
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| 4. |
- Eliasson, Bengt, et al.
(författare)
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Full-Scale Numerical Modeling of Turbulent Processes in the Earth's Ionosphere
- 2008
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Ingår i: Frontiers in Modern Plasma Physics. - : AIP. ; , s. 197-207
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Konferensbidrag (refereegranskat)abstract
- We present a full-scale simulation study of ionospheric turbulence by means of a generalized Zakharov model based on the separation of variables into high-frequency and slow time scales. The model includes realistic length scales of the ionospheric profile and of the electromagnetic and electrostatic fields, and uses ionospheric plasma parameters relevant for high-latitude radio facilities such as Eiscat and HAARP. A nested grid numerical method has been developed to resolve the different length-scales, while avoiding severe restrictions on the time step. The simulation demonstrates the parametric decay of the ordinary mode into Langmuir and ion-acoustic waves, followed by a Langmuir wave collapse and short-scale caviton formation, as observed in ionospheric heating experiments.
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| 5. |
- Karimov, A. R., et al.
(författare)
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The processes of nonequilibrium exchange in rotating plasma flows
- 2016
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Ingår i: II CONFERENCE ON PLASMA & LASER RESEARCH AND TECHNOLOGIES. - : IOP Publishing.
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Konferensbidrag (refereegranskat)abstract
- The mechanisms of energy/momentum exchange in rotating and compressing plasma flows have been discussed. It has been shown that such flows are capable of transforming the energy of different degrees of freedom into the energy of one degree owing to the interaction of the coupled nonlinear radial, axial and azimuthal electron-ion oscillations. These processes may lead to the additional acceleration of the flow in azimuthal or axial direction so they might be instrumental for the creation of space thrusters employing pulse transformations for propulsion.
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| 8. |
- Shukla, Padma Kant, et al.
(författare)
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Magnetization of plasmas
- 2010
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Ingår i: New Frontiers in Advanced Plasma Physics. - : AIP. ; , s. 1-6
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Wecritically examine and evaluate several physical mechanisms that are responsiblefor the seed magnetic fields in plasmas. The plasma magnetizationis attributed to sources that foster motion of the backgroundplasma electrons against the ions. The resulting space charge electricfield and currents, in turn, are detrimental for the plasmamagnetization.
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| 9. |
- Shukla, Padma K., et al.
(författare)
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Modern plasma science
- 2005
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Ingår i: Physica Scripta topical issue T116. ; , s. 5-
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Konferensbidrag (refereegranskat)
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| 10. |
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