نتایج جستجو برای: fermi plasmas

تعداد نتایج: 35381  

Journal: :Physics of Plasmas 2021

We show how the static dielectric function and other characteristics of dense warm charged Fermi liquids can be obtained exclusively from system structure factor. The non-perturbative self-consistent method moments is employed to extend onto quantum fluids, a similar reduction stemming fluctuation-dissipation theorem exact relations for classical one-component plasmas. results are compared comp...

Journal: :Journal of Plasma Physics 2021

The quantum effects in plasmas can be described by the hydrodynamics containing continuity and Euler equations. However, novel phenomena are found via extended set of hydrodynamic equations, where pressure evolution equation flux third-rank tensor included. These give corrections to Coulomb interaction. spectra Langmuir waves spin-electron acoustic calculated. application ensures that contribut...

The characteristics of arbitrary amplitude dust ion acoustic solitary waves (DIASWs) are studied in unmagnetized dusty plasmas whose constituents are cold uid ions, nonextensive electrons and stationary negative/positive dust particles. The pseudopotential approach has been used to investigate the structure of localized waves. It is found that, solitary waves exist in a definite interval for th...

1996
Michel Le Bellac Cristina Manuel

We compute the damping rate of a fermion in a dense relativistic plasma at zero temperature. Just above the Fermi sea, the damping rate is dominated by the exchange of soft magnetic photons (or gluons in QCD) and is proportional to (E − μ), where E is the fermion energy and μ the chemical potential. We also compute the contribution of soft electric photons and of hard photons. As in the nonrela...

2004
M. Bovet D. Popović F. Clerc C. Koitzsch U. Probst E. Bucher H. Berger D. Naumović P. Aebi

M. Bovet, D. Popović, F. Clerc, C. Koitzsch, U. Probst, E. Bucher, H. Berger, D. Naumović, and P. Aebi Département de Physique, Université de Fribourg, Pérolles, CH-1700 Fribourg, Switzerland Experimentalphysik, Universität des Saarlandes, D-66123 Saarbrücken, Germany Institut de Physique, Université de Neuchâtel, CH-2000 Neuchâtel, Switzerland Fachbereich Physik, Universität Konstanz, D-78457 ...

2001
V. S. Filinov M. Bonitz D. Kremp W.-D. Kraeft

A novel path integral representation of the many-particle density operator is presented which makes direct Fermionic path integral Monte Carlo simulations feasible over a wide range of parameters. The method is applied to compute the energy of a dense hydrogen plasma in the region of intermediate coupling and degeneracy and is compared to analytical and experimental results. Many interesting ph...

1998
M. W. C. Dharma-wardana François Perrot

A first principles approach to the equation of state ~EOS! and the transport properties of an interacting mixture of electrons, ions, and neutrals in thermodynamic equilibrium was presented recently in Phys. Rev. E 52, 5352 ~1995!. However, many dynamically produced plasmas have an electron temperature Te different from the ion temperature Ti . The study of these nonequilibrium ~non-eq.! system...

اس. آی. موخین, , ج. اچ. شی, , ج. زانن, , د. صدری, , ف. کروگر, ,

 The fermion sign problem is studied in the path integral formalism. The standard picture of Fermi liquids is first critically analyzed, pointing out some of its rather peculiar properties. The insightful work of Ceperley in constructing fermionic path integrals in terms of constrained world-lines is then reviewed. In this representation, the minus signs associated with Fermi-Dirac statistics a...

2012
SEUNGHYEON SON NATHANIEL FISCH

Submitted for the DPP05 Meeting of The American Physical Society Advanced-Fuel Burning and Current Drive in a Degenerate Plasma SEUNGHYEON SON, NATHANIEL FISCH, Princeton Plasma Physics Laboratory — In degenerate dense plasmas, the rates of electron physical processes, such as bremsstrahlung, inverse bremsstrahlung and Compton scattering, are much reduced due to the Fermi-Dirac statistics. In p...

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