Wavefunction engineering using Mandelbrot, multicorn, and Koch's snowflake fractal quantum rings to control the persistent current

Davood Haji Taghi Tehrani, M. Solaimani and M.R. Fathollahi

Chaos, Solitons & Fractals, 2024, vol. 189, issue P2

Abstract: In this work, we have considered the wavefunction, energy levels, and persistent current of two-dimensional quantum rings that created from the less-studied Mandelbrot, multicorn, and Koch's snowflake fractal shapes. The effect of fractality order on the persistent current for different fractal structure, exchanging this fractals as inner and outer border of the rings, composition parameter x in Ga1−xAlxAs/GaAs system are studied. For this purpose, the numerical solution of the Schrödinger equation governing the problem has been used. We study the effect of symmetry on the creation and destruction of the persistent current. Besides, we have addressed the degeneracies of the wave function of the structures mentioned above.

Keywords: Mandelbrot quantum rings; Multicorn quantum rings; Koch's snowflake quantum rings; Persistent current; Wave function engineering (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:189:y:2024:i:p2:s096007792401258x

DOI: 10.1016/j.chaos.2024.115706

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