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

2013 ◽  
Vol 68 (1-2) ◽  
pp. 152-156 ◽  
Author(s):  
Dae-Han Ki ◽  
Young-Dae Jung
Keyword(s):  
Thermal Energy ◽  
Collision Energy ◽  
Debye Length ◽  
Plasma Temperature ◽  
Partial Wave Analysis ◽  
Wave Analysis ◽  
Strongly Coupled ◽  
Dynamic Screening ◽  
Effective Dynamic ◽  
De Broglie Wavelength

The influence of the dynamic plasma shielding on the collisional entanglement fidelity is investigated in strongly coupled semiclassical plasmas. The partial wave analysis with the effective dynamic screening length is employed to obtain the dynamic entanglement fidelity as a function of collision energy, de Broglie wavelength, Debye length, and thermal energy. The results show that the collisional entanglement fidelity increases with increasing plasma temperature as well as de Broglie wavelength and, however, decreases with an increase of the Debye length. It is also found that the dynamic screening effect suppresses the collisional entanglement fidelity in strongly coupled semiclassical plasmas. In addition, it is found that the entanglement fidelity decreases with increasing de Broglie wavelength and, however, increases with increasing thermal energy. It is also found that the thermal effect on the entanglement fidelity would be more significant in the domain of low-collision energies.

Dynamically Screened Elastic Collisions in Nonideal Plasmas

2006 ◽  
Vol 61 (7-8) ◽  
pp. 330-334
Author(s):  
Dong-Man Chang ◽  
Won-Seok Chang ◽  
Young-Dae Jung
Keyword(s):  
Cross Section ◽  
Impact Parameter ◽  
Thermal Energy ◽  
Collision Energy ◽  
Debye Length ◽  
Parameter Analysis ◽  
Ion Collisions ◽  
Dynamic Screening ◽  
Nonideal Plasmas ◽  
The Impact

The dynamic screening effects on elastic electron-ion collisions are investigated in nonideal plasmas. The second-order eikonal method with the impact parameter analysis is employed to obtain the eikonal phase as a function of the impact parameter, collision energy, thermal energy, and Debye length. The result shows that the eikonal phase decreases with increasing the thermal energy. It is also found that the dynamic screening effects on the eikonal phase are more significant for large impact parameters. The total eikonal cross section is also found to be decreased with increasing the thermal energy. It is important to note that the eikonal cross section and the eikonal phase including the dynamic screening effects are found to be greater than those including the static screening effects.

Influence of the Dynamic Quantum Shielding on the Transition Bremsstrahlung Spectrum and the Gaunt Factor in Strongly Coupled Semiclassical Plasmas

2013 ◽  
Vol 68 (1-2) ◽  
pp. 165-171 ◽  
Author(s):  
Young-Dae Jung ◽  
Woo-Pyo Hong
Keyword(s):  
Cross Section ◽  
Impact Parameter ◽  
Thermal Energy ◽  
Parameter Analysis ◽  
Projectile Energy ◽  
Bremsstrahlung Spectrum ◽  
Bremsstrahlung Radiation ◽  
Screening Effect ◽  
Strongly Coupled ◽  
Dynamic Screening

The influence of the dynamic quantum shielding on the transition bremsstrahlung spectrum is investigated in strongly coupled semiclassical plasmas. The effective pseudopotential and the impact parameter analysis are employed to obtain the bremsstrahlung radiation cross section as a function of the de Broglie wavelength, Debye length, impact parameter, radiation photon energy, projectile energy, and thermal energy. The result shows that the dynamic screening effect enhances the transition bremsstrahlung radiation cross section. It is found that the maximum position of the transition bremsstrahlung process approaches to the center of the shielding cloud with increasing thermal energy. It is also found that the dynamic screening effect on the bremsstrahlung radiation cross section decreases with an increase of the quantum character of the semiclassical plasma. In addition, it is found that the peak radiation energy increases with an increase of the thermal energy. It is also found that the dynamic quantum screening effect enhances the bremsstrahlung Gaunt factor, especially for the soft-photon case.

Quantum Screening Effects on the Entanglement Fidelity for Elastic Collisions in Electron-Ion Quantum Plasmas

2010 ◽  
Vol 65 (12) ◽  
pp. 1143-1146
Author(s):  
Dae-Han Ki ◽  
Young-Dae Jung
Keyword(s):  
Partial Wave ◽  
Interaction Potential ◽  
Collision Energy ◽  
Energy Charge ◽  
Elastic Collision ◽  
Partial Wave Analysis ◽  
Wave Number ◽  
Wave Analysis ◽  
Quantum Plasmas ◽  
Quantum Wave

The quantum screening effects on the entanglement fidelity for the elastic collision are investigated in electron-ion quantum plasmas. The partial wave analysis and modified Debye-Hückel interaction potential are employed to obtain the entanglement fidelity function in electron-ion quantum plasmas as a function of the collision energy, charge of the ion, and quantum wave number. It is found that the quantum screening effects significantly enhance the entanglement fidelity in electron-ion quantum plasmas. It is also found that the entanglement fidelity increases with an increase of the ion charge. The quantum screening effects on the entanglement fidelity is also found to be increased with increasing plasma density. In addition, it is found that the quantum screening effects decreases with an increase of the collision energy.

Dynamic Screening Effects on Collisional Orientation Phenomena in Nonideal Plasmas

2007 ◽  
Vol 62 (12) ◽  
pp. 698-702
Author(s):  
Hwa-Min Kim ◽  
Young-Dae Jung
Keyword(s):  
Impact Parameter ◽  
Thermal Energy ◽  
Debye Length ◽  
Projectile Energy ◽  
Orientation Parameter ◽  
Screening Effect ◽  
Semiclassical Method ◽  
Dynamic Screening ◽  
Nonideal Plasmas ◽  
The Impact

Dynamic screening effects on orientation phenomena of 1s→2p±1 excitations in nonideal plasmas are investigated. A semiclassical method is employed to describe the motion of the projectile electron in order to investigate the variation of the orientation parameter as a function of the impact parameter, projectile energy, thermal energy, and Debye length. The result shows that the preference for the 1s→2p−1 transition significantly decreases with increasing projectile energy. It is found that the dynamic screening effect increases with increasing impact parameter and also with increasing projectile energy. It is also found that the 1s → 2p−1 preference decreases with increasing thermal energy.

scholarly journals Wigner Time-Delay and Distribution for Polarization Interaction in Strongly Coupled Semiclassical Plasmas

Entropy ◽  
2020 ◽  
Vol 22 (9) ◽  
pp. 910
Author(s):  
Myoung-Jae Lee ◽  
Young-Dae Jung
Keyword(s):  
Time Delay ◽  
Dense Plasma ◽  
Wigner Distribution ◽  
Quantum Effect ◽  
Partial Wave Analysis ◽  
Quantum Mechanical ◽  
Wave Analysis ◽  
Wigner Distribution Function ◽  
Strongly Coupled ◽  
Polarization Interaction

The quantum effect on the Wigner time-delay and distribution for the polarization scattering in a semiclassical dense plasma is explored. The partial wave analysis is applied for a partially ionized dense plasma to derive the phase shift for the polarization interaction. The Wigner time-delay and the Wigner distribution are derived for the electron–atom polarization interaction including the effects of quantum-mechanical characteristic and plasma screening. In this work, we show that the Wigner time-delay and the Wigner distribution for the polarization interaction can be suppressed by the quantum effect. The Wigner time-delay and the Wigner distribution are also significantly suppressed by the increase of plasma shielding. The variation of the Wigner time-delay and the Wigner distribution function due to quantum screening is discussed.

Bonding and stability in the ordered alloys FeV and CoTi. Comparison with FeTi

1985 ◽  
Vol 50 (10) ◽  
pp. 2093-2100
Author(s):  
Štěpán Pick ◽  
Mojmír Tomášek ◽  
Mojmír Šob
Keyword(s):  
Phase Diagrams ◽  
Partial Wave ◽  
Partial Wave Analysis ◽  
Intermetallic Alloys ◽  
Wave Analysis ◽  
Ordered Alloys ◽  
Ordered Intermetallic ◽  
Cscl Structure ◽  
Ionic Effects

Partial wave analysis together with the qualitative examination of hybridization has been performed for two ordered intermetallic alloys with CsCl structure, FeV, and CoTi. The results resemble those obtained previously for FeTi, although important deviations are present as well. The stabilization of the ordered phase is again due to ionic effects. Qualitative arguments are suggested to explain the small stability of the CsCl phase of FeV and some differences in the FeTi and CoTi phase diagrams.

New data on the reaction K−p→Λπ0 from 1.934 to 2.516 GeV/c and partial-wave analysis for this reaction between 2070 MeV and 2436 MeV CMS energy

1975 ◽  
Vol 90 ◽  
pp. 1-19 ◽  
Author(s):  
A. de Bellefon ◽  
A. Berthon ◽  
J. Brunet ◽  
G. Tristram ◽  
J. Vrana ◽  
...  
Keyword(s):  
Partial Wave ◽  
Partial Wave Analysis ◽  
Wave Analysis

Dielectric and Mechanical Loading Effects of a Fluid on Lamb Waves Propagating in an Immersed Piezoelectric Plate

2005 ◽  
Vol 21 (3) ◽  
pp. 179-186 ◽  
Author(s):  
C.-H. Yang ◽  
Y.-A. Lai
Keyword(s):  
Lamb Waves ◽  
Piezoelectric Plate ◽  
Dispersion Curves ◽  
Partial Wave Analysis ◽  
Theoretical Treatment ◽  
Fluid Loading ◽  
Wave Analysis ◽  
Sensor Applications ◽  
Dielectric Loading ◽  
Loading Effects

AbstractThis research is focused on exploring the fluid loading effects on the dispersion curves of Lamb modes propagating in a piezoelectric plate. A theoretical treatment based on a partial wave analysis is developed to model the dispersion curves of Lamb modes propagating in an X-LiNbO3 plate loaded by a fluid with combined mechanical/dielectric properties. In particular, the mode-shifting characteristics caused by the fluid loading as a function of the propagation orientation are illustrated with numerical examples. Finally, for the case of water as an immersing fluid, individual attributions of the mechanical and dielectric loading effects causing the mode-shifting are analyzed. It is found that the dielectric loading effect dominates the mode-shifting while the mechanical density loading can be neglected while Lamb waves propagate in an X-LiNbO3 plate immersing in water. The current results provides useful information for the applications of acoustic plate mode (APM) devices used in liquid sensor applications.

Partial-wave analysis of K−p → π0Λ (1520) between 1710 and 2170 MeV c.m. energy including new data between 1775 and 1960 MeV

1977 ◽  
Vol 131 (4-5) ◽  
pp. 399-420 ◽  
Author(s):  
W. Cameron ◽  
B. Franek ◽  
G.P. Gopal ◽  
G.E. Kalmus ◽  
A.C. McPherson ◽  
...  
Keyword(s):  
Partial Wave ◽  
Partial Wave Analysis ◽  
Wave Analysis
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