نتایج جستجو برای: plasma theory

تعداد نتایج: 1129934  

2008
A. Rebhan

The generalization of the hard thermal loop effective theory to anisotropic plasmas is described with a detailed discussion of anisotropic dispersion laws and plasma instabilities. The numerical results obtained in real-time lattice simulations of the hard loop effective theory are reviewed, both for the stationary anisotropic case and for a quark-gluon plasma undergoing boost-invariant expansion.

2008
A Rebhan

The generalization of the hard thermal loop effective theory to anisotropic plasmas is described with a detailed discussion of anisotropic dispersion laws and plasma instabilities. The numerical results obtained in real-time lattice simulations of the hard loop effective theory are reviewed, both for the stationary anisotropic case and for a quark-gluon plasma undergoing boost-invariant expansion.

2005
Lowell S. Brown David C. Dooling Dean L. Preston

Abstract. Real-time thermal field theory is used to reveal the structure of plasma corrections to nuclear reactions. Previous results are recovered in a fashion that clarifies their nature, and new extensions are made. Brown and Yaffe have introduced the methods of effective quantum field theory into plasma physics They are used here to treat the interesting limiting case of dilute but very hig...

Journal: :Plasma Physics Reports 2021

Abstract The process and applications of a specific type gaseous discharge—beam–plasma discharge (BPD)—are reviewed. A brief survey the BPD theory is presented. basic features in active geophysical experiments with injection electron beams into Earth’s ionosphere are discussed. Studies physics have revealed effects successively applied plasma technology for processing nanoelectronic materials s...

2002
W. R. CHAPPELL

When an atom is immersed in a plasma the energy levels are broadened and shifted by the interaction with the fluctuating electric field of the plasma. We discuss the effect of this field on the spectral line shape by the use of results from plasma kinetic theory. In particular we show that in the equilibrium plasma the dominant effect is from single-particle collisions although correlation effe...

2008
Alex Buchel

We study string theory duals of the expanding boost invariant conformal gauge theory plasmas at strong coupling. The dual supergravity background is constructed as an asymptotic latetime expansion, corresponding to equilibration of the gauge theory plasma. The absence of curvature singularities in the first few orders of the late-time expansion of the dual gravitational background unambiguously...

2008
Alex Buchel

We study string theory duals of the expanding boost invariant conformal gauge theory plasmas at strong coupling. The dual supergravity background is constructed as an asymptotic latetime expansion, corresponding to equilibration of the gauge theory plasma. The absence of curvature singularities in the first few orders of the late-time expansion of the dual gravitational background unambiguously...

2003

LLE Review, Volume 92 181 Stimulated Raman scattering (SRS), an instability in which light is scattered by and amplifies electron plasma waves, has long been a concern in laser-fusion research because of its potential to reduce absorption and implosion efficiency. This concern is enhanced by the unsatisfactory state of the theory, particularly in accounting for the prevalence of anomalous SRS—s...

2000
Richard Fitzpatrick Edmund P. Yu

It is demonstrated using conventional uid theory that angular momentum can be injected into a single component plasma con ned in a Penning-Malmberg trap via an externally generated, oscillating, non-axisymmetric, electric eld. The torque exerted on the plasma by the electric eld is a highly non-monotonic function of the plasma angular rotation velocity. The torque vs. angular velocity curve is ...

Journal: :Analytical Chemistry 2021

In situ surface-enhanced Raman scattering (SERS) spectroscopy is used to identify the key reaction intermediates during plasma-based removal of NO and SO2 under dry wet conditions on Ag nanoparticles. Density functional theory (DFT) calculations are confirm experimental observations by calculating vibrational modes surface-bound intermediate species. Here, we provide spectroscopic evidence that...

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