Laser beam effect on the entanglement of elastic collisions in quantum plasma  

作　　者：Ramin Roozehdar Mogaddam Nasser Sepehri Javan Hosein Mohammadzadeh 

机构地区：[1]Department of Physics,Ferdowsi University of Mashhad,PO Box 1436,Mashhad,Iran [2]Department of Physics,University of Mohaghegh Ardabili,PO Box 179,Ardabil,Iran

出　　处：《Communications in Theoretical Physics》2024年第8期147-155,共9页理论物理通讯（英文版）

基　　金：partially supported by the Ferdowsi University of Mashhad under Grant No. 3/43953。

摘　　要：In the quantized field formalism, using Kramers-Henneberger unitary transformation as the semi-classical counterpart of Block-Nordsieck transformation, the dynamics of entanglement during the low energy scattering processes in bi-partite systems at the presence of a laser beam fields are studied. The stationary-state Schrodinger equation for the quantum scattering process is obtained for such systems. Then, using partial wave analysis, we introduce a new form of entanglement fidelity considering the effect of high-intensity laser beam fields. The effective potential of hot quantum plasma including plasmon and quantum screening effects is used to obtain the entanglement fidelity ratio as a function of the laser amplitude, and plasmon and Debye length parameters for the elastic electron-ion collisions. It is shown that the plasma free electrons oscillations under interaction with laser beam fields improve the correlations between charged particles and consequently lead to the increase in the system entanglement.

关 键 词：LASER ENTANGLEMENT quantum plasma elastic collision PLASMON FIDELITY 

分 类 号：O413[理学—理论物理]