发表机构
Université des Sciences et Techniques de Masuku; University of Buea; University of Dschang（马苏库科学技术大学; 布埃亚大学; 德尚大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究将STIRSAP技术扩展到四能级N型系统，通过反绝热驱动实现快速高效的布居转移，并显著缩短转移时间。
AI 中文摘要
受激拉曼绝热捷径（STIRSAP）技术已被证明能够加速绝热布居转移过程。该方法传统上应用于三能级原子系统，能够在短相互作用时间内实现快速高效的布居转移。在本工作中，我们将该方法扩展到由三个激光场驱动的四能级N型系统。在三光子相位匹配条件下，一阶多普勒效应可以被完全消除，这使得该构型更适合于频率计量和量子信息处理中的应用。通过绝热消除中间态，四能级系统被有效简化为两能级模型，从而无需额外耦合即可应用反绝热驱动。该方法能够在亚稳态之间实现快速高效的布居转移。我们分析了激光强度峰值和失谐的影响，并表明转移时间显著短于STIRAP技术所达到的时间。此外，我们还展示了基态与亚稳态之间的最优耦合强度能够进一步缩短操作时间。
英文摘要
The stimulated Raman shortcut-to-adiabatic passage (STIRSAP) technique has been demonstrated to accelerate adiabatic population transfer processes. Traditionally applied to three-level atomic systems, this method enables rapid and efficient population transfer in a short interaction time. In this work, we extend this approach to a four-level N -type system driven by three laser fields. Under the three-photon phase matching condition, the first-order Doppler effect can be completely eliminated, making this configuration more suitable for applications in frequency metrology and quantum information processing. By adiabatically eliminating the intermediate state, the four-level system is effectively reduced to a two-level model, enabling the application of counterdiabatic driving without requiring additional couplings. This approach allows for fast and efficient population transfer between metastable states. We analyze the influence of laser intensity peaks and detuning, and we show that the transfer time is significantly shorter than that achieved with the STIRAP technique. Moreover, we also show 1 that an optimal coupling strength between the ground and metastable states further minimizes the operation time.
Journal refBrazilian Journal of Physics, 2026, 56 (5), pp.207
