Gridless Quasistatic Model for Efficient Simulation of Plasma-based Accelerators
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866911522817572864 |
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| author | Pousa, Ángel Ferran Hertog, Wilbert M. den Diederichs, Severin de la Ossa, Al berto Martinez Carrasco, Jorge L. Ordóñez Sinn, Alexander Thévenet, Maxence |
| author_facet | Pousa, Ángel Ferran Hertog, Wilbert M. den Diederichs, Severin de la Ossa, Al berto Martinez Carrasco, Jorge L. Ordóñez Sinn, Alexander Thévenet, Maxence |
| contents | The accurate modeling of plasma-based accelerators relies on costly numerical simulations due to the complexity of laser-plasma and beam-plasma interactions. Several strategies can highly reduce the computational cost compared to 3D first-principles particle-in-cell simulations, such as exploiting the near axial symmetry and quasistatic nature of plasma wakefields in many practical cases. Here, we propose a quasistatic algorithm that enables the modeling of axially symmetric plasma wakes without the need of a numerical grid. The gridless approach allows extremely fine features to be resolved without a dramatic increase in computational cost. This is critical, e.g., for the design of future plasma-based colliders with nanometer emittance beams. The proposed model has been implemented in the Wake-T code, where it is coupled to a laser envelope solver and a particle beam pusher to enable the efficient simulation of laser- and beam-driven plasma accelerators. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2603_16623 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Gridless Quasistatic Model for Efficient Simulation of Plasma-based Accelerators Pousa, Ángel Ferran Hertog, Wilbert M. den Diederichs, Severin de la Ossa, Al berto Martinez Carrasco, Jorge L. Ordóñez Sinn, Alexander Thévenet, Maxence Plasma Physics Accelerator Physics Computational Physics The accurate modeling of plasma-based accelerators relies on costly numerical simulations due to the complexity of laser-plasma and beam-plasma interactions. Several strategies can highly reduce the computational cost compared to 3D first-principles particle-in-cell simulations, such as exploiting the near axial symmetry and quasistatic nature of plasma wakefields in many practical cases. Here, we propose a quasistatic algorithm that enables the modeling of axially symmetric plasma wakes without the need of a numerical grid. The gridless approach allows extremely fine features to be resolved without a dramatic increase in computational cost. This is critical, e.g., for the design of future plasma-based colliders with nanometer emittance beams. The proposed model has been implemented in the Wake-T code, where it is coupled to a laser envelope solver and a particle beam pusher to enable the efficient simulation of laser- and beam-driven plasma accelerators. |
| title | Gridless Quasistatic Model for Efficient Simulation of Plasma-based Accelerators |
| topic | Plasma Physics Accelerator Physics Computational Physics |
| url | https://arxiv.org/abs/2603.16623 |