Handling the Cornell potential within the Lagrange-mesh method in momentum space

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Hauptverfasser: Chevalier, Cyrille, Viseur, Joachim
Format: Preprint
Veröffentlicht: 2025
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author Chevalier, Cyrille
Viseur, Joachim
author_facet Chevalier, Cyrille
Viseur, Joachim
contents This work presents an alternative methodology for computing potentials matrix elements within the Lagrange-mesh method in momentum space. The proposed approach extends the range of treatable potentials to include previously inaccessible cases, such as the Coulomb and linear interactions. It enables, in particular, an efficient and accurate treatment of the Cornell potential, which plays an important role in potential models for hadronic physics. The method is validated across a variety of systems, with special attention given to the representation of both momentum and position probability densities.
format Preprint
id arxiv_https___arxiv_org_abs_2510_03015
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Handling the Cornell potential within the Lagrange-mesh method in momentum space
Chevalier, Cyrille
Viseur, Joachim
Quantum Physics
This work presents an alternative methodology for computing potentials matrix elements within the Lagrange-mesh method in momentum space. The proposed approach extends the range of treatable potentials to include previously inaccessible cases, such as the Coulomb and linear interactions. It enables, in particular, an efficient and accurate treatment of the Cornell potential, which plays an important role in potential models for hadronic physics. The method is validated across a variety of systems, with special attention given to the representation of both momentum and position probability densities.
title Handling the Cornell potential within the Lagrange-mesh method in momentum space
topic Quantum Physics
url https://arxiv.org/abs/2510.03015