I. M. Tkachenko
Polytechnic University of Valencia
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Featured researches published by I. M. Tkachenko.
Physical Review E | 2007
Yu. V. Arkhipov; A. Askaruly; D. Ballester; A. E. Davletov; G. M. Meirkanova; I. M. Tkachenko
Classical MD data on the charge-charge dynamic structure factor of two-component plasmas (TCP) modeled in Phys. Rev. A 23, 2041 (1981) are analyzed using the sum rules and other exact relations. The convergent power moments of the imaginary part of the model system dielectric function are expressed in terms of its partial static structure factors, which are computed by the method of hypernetted chains using the Deutsch effective potential. High-frequency asymptotic behavior of the dielectric function is specified to include the effects of inverse bremsstrahlung. The agreement with the MD data is improved, and important statistical characteristics of the model TCP, such as the probability to find both electron and ion at one point, are determined.
EPL | 2013
Yu. V. Arkhipov; A. B. Ashikbayeva; A. Askaruly; A. E. Davletov; I. M. Tkachenko
Relativistic and correlation contributions to the polarizational energy losses of heavy projectiles moving in dense two-component plasmas are analyzed within the method of moments that allows one to reconstruct the Lindhard loss function from its three independently known power frequency moments. The techniques employed result in a thorough separation of the relativistic and correlation corrections to the classical asymptotic form for the polarizational losses obtained by Bethe and Larkin. The above corrections are studied numerically at different values of plasma parameters to show that the relativistic contribution enhances only slightly the corresponding value of the stopping power.
Contributions To Plasma Physics | 2001
J. Ortner; M. Steinberg; I. M. Tkachenko
The stopping power of magnetized and unmagnetized electronic plasmas is investigated. Within the dielectric formalism we obtain a general formula for the linear stopping power of a coupled plasma. A quantum mechanical form of the dielectric tensor is used, so that an abitrary cutoff procedure is not required. Employing the method of frequency moments we obtain analytical results for the high-projectile-velocity asymptotic forms.
Journal of Mathematics and Physics | 2014
Yu. V. Arkhipov; A. Askaruly; A. E. Davletov; D. Dubovtsev; L.T. Yerimbetova; I. M. Tkachenko
An effective pair interaction potential of particles for ideal and weakly non-ideal plasma were obtained. It takes into account not only screening and dynamic quantum effects, but also statistical quantum effects. Comparison between other kinds of potentials was conducted. The results for this potential show that our potential tends to a finite value at small distances and lies below Deutsch and Kelbg potentials. At large distances it tends to zero as Debye- Huckel potential. We used this potential for the calculation of plasma pressure and compared our results with simulation data. The calculated pressure values are in a good agreement with simulation one at high temperatures.
Contributions To Plasma Physics | 2003
V.M. Adamyan; I. M. Tkachenko
Physical Review E | 2014
Yu. V. Arkhipov; A. B. Ashikbayeva; A. Askaruly; A. E. Davletov; I. M. Tkachenko
Contributions To Plasma Physics | 2003
S. A. Trigger; Werner Ebeling; A.M. Ignatov; I. M. Tkachenko
Contributions To Plasma Physics | 2016
A. E. Davletov; Yu. V. Arkhipov; I. M. Tkachenko
Contributions To Plasma Physics | 2015
Yu. V. Arkhipov; A. B. Ashikbayeva; A. Askaruly; A. E. Davletov; S. Syzganbaeva; I. M. Tkachenko
Contributions To Plasma Physics | 2010
Yu. V. Arkhipov; A. Askaruly; F. B. Baimbetov; D. Ballester; A. E. Davletov; G. M. Meirkanova; I. M. Tkachenko