Runaway electrons in a fully and partially ionized nonideal plasma

Abstract

This paper reports on a study of electron runaway for a nonideal plasma in an external electric field. Based on pseudopotential models of nonideal fully and partially ionized plasmas, the friction force was derived as a function of electron velocities. Dependences of the electron free path on plasma density and nonideality parameters were obtained. The impact of the relative number of runaway electrons on their velocity and temperature was considered for classical and semiclassical models of a nonideal plasma. It has been shown that for the defined intervals of the coupled plasma parameter, the difference between the relative numbers of runaway electron values is essential for various plasma models.

Quantum characteristics of occurrence scattering time in two-component non-ideal plasmas

“…The atomic collision and radiation processes have been actively investigated by using the effective potentials based on the Yukawa-type Debye-Hückel model [6,19] and the ion-sphere model [20], respectively, in weakly coupled and strongly coupled plasmas. Recent years, the physical characteristics and properties of dense plasmas have been of great interests since the dense non-ideal plasma can be found in various astrophysical and laboratory environments such as astrophysical compact objects, intense laser-plasma experiments, nano-wires, quantum dots, and semiconductor devices [21][22][23][24][25][26][27][28]. In non-ideal plasmas [21][22][23], however, it is shown that the effective interaction potential and the electron pair-correlation function would not be properly represented by the Debye-Hückel theory owing to the influence of quantum and collective correlation effects.…”

“…Recent years, the physical characteristics and properties of dense plasmas have been of great interests since the dense non-ideal plasma can be found in various astrophysical and laboratory environments such as astrophysical compact objects, intense laser-plasma experiments, nano-wires, quantum dots, and semiconductor devices [21][22][23][24][25][26][27][28]. In non-ideal plasmas [21][22][23], however, it is shown that the effective interaction potential and the electron pair-correlation function would not be properly represented by the Debye-Hückel theory owing to the influence of quantum and collective correlation effects. Hence, it is expected that the occurrence times for the elastic electron-ion collision in non-ideal plasmas can be quite different from those in weakly coupled plasmas due to the quantum diffraction [28] and plasma screening effects.…”

Influence of the Dynamic Shielding on the Collisional Entanglement Fidelity in Strongly Coupled Semiclassical Plasmas

“…It is also shown that the entanglement fidelity in the collision process has received a considerable attention since it has been shown that the quantum correlation phenomenon [6] plays an important role for understanding the quantum measurements and information processing in various quantum systems. Recently, the physical properties of strongly coupled plasmas have been extensively investigated since the interiors of astrophysical compact objects and inertial confinement fusion plasmas would be classified as strongly coupled plasmas [7 -11].…”

Quantum and plasma screening effects on the Wannier threshold law for the double-electron escape in strongly coupled semiclassical plasmas

“…In addition, it has been shown that the interaction potential in strongly coupled semiclassical plasmas would not be represented by the conventional DebyeHückel model because of nonideal particle interactions due to collective and quantum effects. [10][11][12][13] However, the behavior of the Wannier threshold law for the double-electron escape in strongly coupled semiclassical plasmas has not been specifically investigated as yet. Thus, in this brief communication we investigate the quantum and plasma screening effects on the Wannier threshold law for the double-electron escape from the ion in strongly coupled semiclassical plasmas.…”