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Computing of the Ground State Energy of a Hydrogen Like Impurity in a Spherical Quantum Dot using QPSO Algorithm

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  • Mohsen Samet Omran

    (Department of Physics, University of Semnan, Semnan, Iran)

Abstract

In this work, quantum particle swarm optimization (QPSO1) algorithm method is applied to the problem of impurity at the center of a spherical quantum dot for infinite confining potential case. For this purpose, a trial variational wave function is considered for ground state, and then energy values are calculated as a function of the radius of a spherical quantum dot. Also, the evolution of the energy eigenvalue for different dot radii and different optimized parameter is determined. The energy converges remarkably fast, after a few numbers of iteration. In comparison with the two other available methods, standard variational procedure and genetic algorithm method (GA), the results coming out from QPSO algorithm are in more satisfactory agreement with the real values.

Suggested Citation

  • Mohsen Samet Omran, 2016. "Computing of the Ground State Energy of a Hydrogen Like Impurity in a Spherical Quantum Dot using QPSO Algorithm," International Journal of Energy Optimization and Engineering (IJEOE), IGI Global, vol. 5(4), pages 48-61, October.
    • Handle: RePEc:igg:jeoe00:v:5:y:2016:i:4:p:48-61
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