تقرير
Robust double Bragg diffraction via detuning control
| العنوان: | Robust double Bragg diffraction via detuning control |
|---|---|
| المؤلفون: | Li, Rui, Martínez-Lahuerta, V. J., Seckmeyer, S., Hammerer, Klemens, Gaaloul, Naceur |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Condensed Matter - Quantum Gases, Physics - Atomic Physics |
| الوصف: | We present a new theoretical model and numerical optimization of double Bragg diffraction (DBD), a widely used technique in atom interferometry. We derive an effective two-level-system Hamiltonian based on the Magnus expansion in the so-called "quasi-Bragg regime", where most Bragg-pulse atom interferometers operate. Furthermore, we extend the theory to a five-level description to account for Doppler detuning. Using these derived effective Hamiltonians, we investigate the impacts of AC-Stark shift and polarization errors on the double Bragg beam-splitter, along with their mitigations through detuning control. Notably, we design a linear detuning sweep that demonstrates robust efficiency exceeding 99.5% against polarization errors up to 8.5%. Moreover, we develop an artificial intelligence-aided optimal detuning control protocol, showcasing enhanced robustness against both polarization errors and Doppler effects. This protocol achieves an average efficiency of 99.92% for samples with a finite momentum width of 0.05$\hbar k_L$ within an extended polarization error range of up to 10%. Comment: 17 pages, 18 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.04754 |
| رقم الأكسشن: | edsarx.2407.04754 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |