Sledgehamr: Simulating Scalar Fields with Adaptive Mesh Refinement
Understanding the nonlinear dynamics of coupled scalar fields often necessitates simulations on a 3D mesh. These simulations can be computationally expensive if a large scale separation is involved. A common solution is adaptive mesh refinement, which, however, greatly increases a simulation's...
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ad9ea2 |
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| author | Malte Buschmann |
| author_facet | Malte Buschmann |
| author_sort | Malte Buschmann |
| collection | DOAJ |
| description | Understanding the nonlinear dynamics of coupled scalar fields often necessitates simulations on a 3D mesh. These simulations can be computationally expensive if a large scale separation is involved. A common solution is adaptive mesh refinement, which, however, greatly increases a simulation's complexity. In this work, we present sledgehamr , an AMReX -based code package to make the simulation of coupled scalar fields on an adaptive mesh more accessible. Compatible with both GPU and CPU clusters, sledgehamr offers a flexible and customizable framework. While the code had been primarily developed to evolve axion string networks, this framework enables various other applications, such as the study of gravitational waves sourced by the dynamics of scalar fields. |
| format | Article |
| id | doaj-art-5ea3edd76b9a490eb0a6bfc0c9262ac8 |
| institution | Kabale University |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj-art-5ea3edd76b9a490eb0a6bfc0c9262ac82025-01-29T05:34:07ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-01979222010.3847/1538-4357/ad9ea2Sledgehamr: Simulating Scalar Fields with Adaptive Mesh RefinementMalte Buschmann0https://orcid.org/0000-0002-2036-4763GRAPPA Institute, Institute for Theoretical Physics Amsterdam, University of Amsterdam , Science Park 904, 1098 XH Amsterdam, The NetherlandsUnderstanding the nonlinear dynamics of coupled scalar fields often necessitates simulations on a 3D mesh. These simulations can be computationally expensive if a large scale separation is involved. A common solution is adaptive mesh refinement, which, however, greatly increases a simulation's complexity. In this work, we present sledgehamr , an AMReX -based code package to make the simulation of coupled scalar fields on an adaptive mesh more accessible. Compatible with both GPU and CPU clusters, sledgehamr offers a flexible and customizable framework. While the code had been primarily developed to evolve axion string networks, this framework enables various other applications, such as the study of gravitational waves sourced by the dynamics of scalar fields.https://doi.org/10.3847/1538-4357/ad9ea2CosmologyDark matterEarly universe |
| spellingShingle | Malte Buschmann Sledgehamr: Simulating Scalar Fields with Adaptive Mesh Refinement The Astrophysical Journal Cosmology Dark matter Early universe |
| title | Sledgehamr: Simulating Scalar Fields with Adaptive Mesh Refinement |
| title_full | Sledgehamr: Simulating Scalar Fields with Adaptive Mesh Refinement |
| title_fullStr | Sledgehamr: Simulating Scalar Fields with Adaptive Mesh Refinement |
| title_full_unstemmed | Sledgehamr: Simulating Scalar Fields with Adaptive Mesh Refinement |
| title_short | Sledgehamr: Simulating Scalar Fields with Adaptive Mesh Refinement |
| title_sort | sledgehamr simulating scalar fields with adaptive mesh refinement |
| topic | Cosmology Dark matter Early universe |
| url | https://doi.org/10.3847/1538-4357/ad9ea2 |
| work_keys_str_mv | AT maltebuschmann sledgehamrsimulatingscalarfieldswithadaptivemeshrefinement |