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arXiv · 2203.09437

Electron Wave Spin in a Quantum Well

Ju Gao
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Abstract

The particle-wave duality of the electron poses a principle question of whether the spin is a property of the particle or the wave. In this paper, the wave nature of the spin is studied for an electron inside a two-dimensional quantum well. By solving the exact $4-$spinor eigen solution to the Dirac equation, we show that a stable circulating total current density exists inside the well with a donut shaped topography. A spin value is modified by the confining geometry of the well. Our analysis also shows that a free electron Gaussian wavepacket is unstable and experiences quick decoherence.

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Ju Gao. 2022-03-17. Electron Wave Spin in a Quantum Well. https://doi.org/10.1088/2399-6528%2Fac8599

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