Armenian Journal of Physics

Numerical Study of Josephson Nanostructures Using Parallel Computing

Rahmonov, I.R. and Zemlyanaya, E.V. and Bashashin, M.V. and Atanasova, P. and Rahmonova, A.R. and Shukrinov, Yu.M (2019) Numerical Study of Josephson Nanostructures Using Parallel Computing. Armenian Journal of Physics, 12 (3). pp. 233-239. ISSN 1829-1171

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Abstract

We investigate the phase dynamics of the stack of long JJs, the length of which exceeds the Josephson penetration depth λJ , taking into account the inductive and capacitive couplings between junctions and diffusion current. Numerical simulation of current-voltage characteristics of the stack is based on numerical solution of a system of nonlinear partial differential equations by the fourth order Runge-Kutta method and finite-difference approximation. The calculations are performed using the MPI technique for parallel implementation. The methodical calculations on multi-processor cluster (LIT JINR) with a different number of parallel MPI-processes are carried out. We have shown that the developed parallel algorithm provides about 7 time acceleration in comparison with serial simulation.

Item Type:Article
Subjects:Physics > 03.Quantum mechanics, field theories, and special relativity
Physics > Cross Dissiplinary
ID Code:1068
Deposited By:Prof. Vladimir Aroutiounian
Deposited On:17 Oct 2019 22:27
Last Modified:18 Oct 2019 14:18

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