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Z. Naturforsch. 68a, 152 – 156
(2013)
doi:10.5560/ZNA.2012-0067
Influence of the Dynamic Shielding on the Collisional Entanglement Fidelity in Strongly Coupled Semiclassical Plasmas
1 Department of Applied Physics, Hanyang University, Ansan, Kyunggi-Do 426-791, South Korea
2 Department of Electrical and Computer Engineering, MC 0407, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0407, USA
Received July 7, 2012 / published online February 15, 2013
Reprint requests to: Y.-D. J.; E-mail:
ydjung@hanyang.ac.kr
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.
Key words: Dynamic Shielding; Collisional Entanglement Fidelity; Semiclassical Plasmas.