dorsal/arxiv
View SchemaA multi-mesh adaptive finite element method for solving the Gross-Pitaevskii equation
| Authors | Mingzhe Li, Yang Kuang, Zhicheng Hu |
|---|---|
| Categories | |
| ArXiv ID | 2601.08299vv1 |
| URL | https://arxiv.org/abs/2601.08299 |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
It is found that the wave functions of the Gross-Pitaevskii equation (GPE) often vary significantly in different spatial regions, with some components exhibiting sharp variations while others remain smooth. Solving the GPE on a single mesh, even with adaptive refinement, can lead to excessive computational costs due to the need to accommodate the most oscillatory solution. To address this issue, we present a multi-mesh adaptive finite element method for solving the GPE. To this end, we first convert it into a time-dependent equation through the imaginary time propagation method. Then the equation is discretized by the backward Euler method temporally and the multi-mesh adaptive finite element method spatially. The proposed method is compared with the single-mesh adaptive method through a series of numerical experiments, which demonstrate that the multi-mesh adaptive method can achieve the same numerical accuracy with less computational consumption.
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"date_created": "2026-02-17T05:53:15.443000Z",
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"abstract": "It is found that the wave functions of the Gross-Pitaevskii equation (GPE) often vary significantly in different spatial regions, with some components exhibiting sharp variations while others remain smooth. Solving the GPE on a single mesh, even with adaptive refinement, can lead to excessive computational costs due to the need to accommodate the most oscillatory solution. To address this issue, we present a multi-mesh adaptive finite element method for solving the GPE. To this end, we first convert it into a time-dependent equation through the imaginary time propagation method. Then the equation is discretized by the backward Euler method temporally and the multi-mesh adaptive finite element method spatially. The proposed method is compared with the single-mesh adaptive method through a series of numerical experiments, which demonstrate that the multi-mesh adaptive method can achieve the same numerical accuracy with less computational consumption.",
"arxiv_id": "2601.08299",
"authors": [
"Mingzhe Li",
"Yang Kuang",
"Zhicheng Hu"
],
"categories": [
"math.NA",
"cs.NA",
"math-ph",
"math.MP"
],
"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "A multi-mesh adaptive finite element method for solving the Gross-Pitaevskii equation",
"url": "https://arxiv.org/abs/2601.08299",
"version": "v1"
},
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