Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

The Effect of Noncommutative Phase-Space, Local and Nonlocal Potentials on the Current Density in the Context of Minimal Uncertainty in Momentum

Version 1 : Received: 2 March 2024 / Approved: 4 March 2024 / Online: 4 March 2024 (10:37:35 CET)

How to cite: Haouam, I. The Effect of Noncommutative Phase-Space, Local and Nonlocal Potentials on the Current Density in the Context of Minimal Uncertainty in Momentum. Preprints 2024, 2024030115. https://doi.org/10.20944/preprints202403.0115.v1 Haouam, I. The Effect of Noncommutative Phase-Space, Local and Nonlocal Potentials on the Current Density in the Context of Minimal Uncertainty in Momentum. Preprints 2024, 2024030115. https://doi.org/10.20944/preprints202403.0115.v1

Abstract

In this article, we investigate both the Schrödinger and continuity equations in the presence of nonlocal potential that arising from electron-electron interaction and local one in the context of minimal uncertainty in momentum within commutative and noncommutative frameworks. Furthermore, the Frahn–Lemmer potential type is used. Interestingly, the combined effects of both the phase-space noncommutativity and nonlocality on the current density while considering a minimal uncertainty in momentum are examined. We find that the current density, as conventionally defined, does not fulfil the condition of current conservation, thus, a new definition of the current density that encompasses the aforementioned contributions is given. Thereafter, it is shown that the computed current using the new definition of the current density satisfies the current conservation. Noting that using both the product and linear Bopp-Shift, the noncommutativity is inserted.

Keywords

Schrödinger equation; noncommutative quantum mechanics; minimal uncertainty in momentum; continuity equation; nonlocal potential; Frahn-Lemmer potential  

Subject

Physical Sciences, Theoretical Physics

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