تقرير
Simulation and design of shaped pulses beyond the piecewise-constant approximation
| العنوان: | Simulation and design of shaped pulses beyond the piecewise-constant approximation |
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| المؤلفون: | Rasulov, Uluk, Acharya, Anupama, Carravetta, Marina, Mathies, Guinevere, Kuprov, Ilya |
| سنة النشر: | 2023 |
| المجموعة: | Computer Science Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Electrical Engineering and Systems Science - Systems and Control, Physics - Computational Physics, Quantum Physics |
| الوصف: | Response functions of resonant circuits create ringing artefacts if their input changes rapidly. When physical limits of electromagnetic spectroscopies are explored, this creates two types of problems. Firstly, simulation: the system must be propagated accurately through every response transient, this may be computationally expensive. Secondly, optimal control: circuit response must be taken into account; it may be advantageous to design pulses that are resilient to such distortions. At the root of both problems is the popular piecewise-constant approximation for control sequences in the rotating frame; in magnetic resonance it has persisted since the earliest days and has become entrenched in the commercially available hardware. In this paper, we report an implementation and benchmarks of recent Lie-group methods that can efficiently simulate and optimise smooth control sequences. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.jmr.2023.107478 |
| URL الوصول: | http://arxiv.org/abs/2303.09458 |
| رقم الأكسشن: | edsarx.2303.09458 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.jmr.2023.107478 |
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