• Keine Ergebnisse gefunden

Screened Collision-Induced Quantum Interference in Collisional Plasmas Sang-Chul Na

N/A
N/A
Protected

Academic year: 2022

Aktie "Screened Collision-Induced Quantum Interference in Collisional Plasmas Sang-Chul Na"

Copied!
1
0
0

Wird geladen.... (Jetzt Volltext ansehen)

Volltext

(1)

Screened Collision-Induced Quantum Interference in Collisional Plasmas

Sang-Chul Naaand Young-Dae Junga,b

aDepartment of Applied Physics, Hanyang University, Ansan, Kyunggi-Do 426-791, South Korea

bAtomic and Molecular Data Research Center, National Institute for Fusion Science, Toki, Gifu, 509-5292, Japan

Reprint requests to Y.-D. J.; E-mail: ydjung@hanyang.ac.kr

Z. Naturforsch.64a,233 – 236 (2009); received April 8, 2008 / revised November 11, 2008 The effects of neutral particle collisions on the quantum interference in electron-electron collisions are investigated in collisional plasmas. The effective potential model taking into account the electron- neutral particle collision effects is employed in order to obtain the electron-electron collision cross section including the total spin states of the collision system. It is found that the collision effects sig- nificantly enhance the cross section. In addition, the collision-induced quantum interference effects are found to be significant in the singlet spin state. It is shown that the quantum interference effects decrease with increasing the thermal energy of the plasma. It is also shown that the quantum interfer- ence effects increase with an increase of the collision energy.

Key words:Quantum Interference; Collisional Plasmas.

Referenzen

ÄHNLICHE DOKUMENTE

Figure 1 represents the total eikonal scattering phase shift χ E for the elastic electron–ion collision in quan- tum plasmas including the influence of the electron exchange and

In summary, we have shown the existence of new localized nonlinear structures for the electrostatic po- tential and the electron density in the form of bright and W-shaped solitons

The modified interaction model taking into account the nonthermal screen- ing and plasmon effects is employed to represent the electron-ion interaction potential in hot

Thus, in the present paper we investigate the non- thermal and plasmon effects on the elastic electron- ion collision in hot quantum Lorentzian plasmas. The modified interaction

Using the Born approximation for the initial and final states of the projectile electron, the bremsstranhlung radiation cross section is obtained as a function of the grain size,

Hence, we have found that the grain size effect plays a significant role in the electron-dust grain bremsstrahlung process in dusty plasmas containing highly charged dusty

Fig- ure 1 represents the comparison between the scatter- ing phase shifts ζ obtained by the modified Debye- H¨uckel screening and by the standard Debye-H¨uckel screening as a

When there are several different symmetry-related tun- neling paths connecting two degenerate classical ground states of a spin system, the topological phase can lead to