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相关论文: Analytic solution for kinetic equilibrium of beta-…

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The exact reaction rates of beta processes for all particles at arbitrary degeneracy are derived, and an analytic beta-equilibrium condition $\mu_n=\mu_p+2\mu_e$ for the hot electron-positron plasma with nucleons is found, if the matter is…

天体物理学 · 物理学 2007-05-23 Yefei Yuan

The reaction rates of the beta processes for all particles at arbitrary degeneracy are derived, and an {\it analytic} steady state equilibrium condition $\mu_n=\mu_p+2\mu_e$ which results from the equality of electron and positron capture…

天体物理学 · 物理学 2007-05-23 Ye-Fei Yuan

The non-equilibrium electron-positron-photon plasma thermalization process is studied using relativistic Boltzmann solver, taking into account quantum corrections both in non-relativistic and relativistic cases. Collision integrals are…

高能天体物理现象 · 物理学 2018-12-20 M. A. Prakapenia , I. A. Siutsou , G. V. Vereshchagin

In the recent Letter [1] we considered the approach of nonequilibrium pair plasma towards thermal equilibrium state adopting a kinetic treatment and solving numerically the relativistic Boltzmann equations. It was shown that plasma in the…

高能天体物理现象 · 物理学 2009-08-26 A. G. Aksenov , R. Ruffini , G. V. Vereshchagin

Ultracold neutral plasmas, formed by photoionizing laser-cooled atoms near the ionization threshold, have electron temperatures in the 1-1000 kelvin range and ion temperatures from tens of millikelvin to a few kelvin. They represent a new…

原子物理 · 物理学 2009-11-13 T. C. Killian , T. Pattard , T. Pohl , J. M. Rost

We present a unified treatment of nuclear density cores recovering the classic results for neutral atoms with heavy nuclei having a mass number $A\approx 10^2--10^6$ and extrapolating these results to massive nuclear density cores with…

太阳与恒星天体物理 · 物理学 2009-03-24 Vladimir Popov , Michael Rotondo , Remo Ruffini , She-Sheng Xue

The microphysical, kinetic properties of astrophysical plasmas near accreting compact objects are still poorly understood. For instance, in modern general-relativistic magnetohydrodynamic simulations, the relation between the temperature of…

高能天体物理现象 · 物理学 2023-03-08 Claudio Meringolo , Alejandro Cruz-Osorio , Luciano Rezzolla , Sergio Servidio

A non-relativistic multi-fluid plasma axisymmetric equilibrium model was developed recently to account for the presence of an energetic electron fluid in addition to thermal electron and ion fluids. The equilibrium formulation of a…

等离子体物理 · 物理学 2021-03-31 Akio Ishida , Y. -K. Martin Peng , Wenjun Liu

Energetic electrons are of interest in many types of plasmas, however previous modeling of their properties has been restricted to the use of linear Fokker-Planck collision operators or non-relativistic formulations. Here, we describe a…

等离子体物理 · 物理学 2016-11-28 A. Stahl , M. Landreman , O. Embréus , T. Fülöp

We present a unified approach which is accurate at all temperatures and densities for calculating the energy loss from a stellar plasma due to the plasma process, the decay of photons and plasmons into neutrino pairs. To allow efficient…

高能物理 - 唯象学 · 物理学 2009-12-30 Eric Braaten , Daniel Segel

We provide an equation of state for hot nuclear matter in $\beta$-equilibrium by applying a momentum-dependent effective interaction. We focus on the study of the equation of state of high-density and high-temperature nuclear matter,…

核理论 · 物理学 2009-12-31 Ch. C. Moustakidis , C. P. Panos

The total set of the neutrino - electron processes in a presence of both components of an active medium, hot dense plasma and strong magnetic field, is investigated for the first time. The contribution of the processes $\nu e^- \to \nu…

高能物理 - 唯象学 · 物理学 2009-10-31 A. V. Kuznetsov , N. V. Mikheev

Several different processes could be changing the density in the core of a neutron star, leading to a departure from $\beta$ equilibrium, quantified by the chemical potential difference $\delta\mu\equiv\mu_n-\mu_p-\mu_e$. The evolution of…

天体物理学 · 物理学 2009-11-11 Sergio Flores-Tulian , Andreas Reisenegger

We search for approximate, but analytic solutions of the pairing problem for one pair of nucleons in many levels of a potential well. For the collective energy a general formula, independent of the details of the single particle spectrum,…

核理论 · 物理学 2009-11-07 M. Barbaro , R. Cenni , A. Molinari , M. R. Quaglia

We briefly review analytic approximations of thermodynamic functions of fully ionized nonideal electron-ion plasmas, applicable in a wide range of plasma parameters, including the domains of nondegenerate and degenerate, nonrelativistic and…

等离子体物理 · 物理学 2010-02-01 A. Y. Potekhin , G. Chabrier

Two charge- and current neutral plasma beams are modelled with a one-dimensional PIC simulation. The beams are uniform and unbounded. The relative speed between both beams is 0.4c. One beam is composed of electrons and protons and one out…

天体物理学 · 物理学 2014-11-18 M E Dieckmann , A Bret

The theory of ion-acoustic solitons in nonrelativistic fully degenerate plasmas and nonrelativistic and ultra-relativistic degenerate plasmas at low temperatures is known. We consider a multi-component relativistic degenerate…

等离子体物理 · 物理学 2024-11-07 R. Dey , G. Banerjee , A. P. Misra , C. Bhowmik

An efficient numerical approach to equilibrium properties of strongly coupled systems which include a subsystem of fermionic quantum particles and a subsystem of classical particles is presented. It uses an improved path integral…

强关联电子 · 物理学 2017-08-23 V. S. Filinov , P. R. Levashov , V. E. Fortov , M. Bonitz

We report the highest compression reached in laboratory plasmas using eight laser beams, E$_{laser}$$\approx$12 kJ, $\tau_{laser}$=2 ns in third harmonic on a CD$_2$ target at the ShenGuang-II Upgrade (SGII-Up) facility in Shanghai, China.…

Thermodynamic properties of the electron-positron plasma (or gas) at high and very high temperatures are investigated. To achieve this goal we have derived a number of analytical formulas for the Fermi-Dirac distribution functions (or…

等离子体物理 · 物理学 2023-01-16 Alexei M. Frolov
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