论文标题
使用量子干涉法
Phase-Resolved Rydberg Atom Field Sensing using Quantum Interferometry
论文作者
论文摘要
尽管基于Rydberg Atom的电场传感比传统的基于天线的检测提供了关键优势，但它仍然受到局部振荡器（LO）（LO）的限制，用于低场和相位分辨的检测。在这项工作中，我们证明了闭环量子干涉方案可用于生成系统内部参考，该参考可以直接替换Rydberg字段传感的外部LO。我们揭示了这种量子间截面定义的内部参考阶段，并且频率可与传统的LO用于基于原子的下降，以锁定相位检测的中间频率。我们证明，这种LO等效功能为LO提供了类似的好处，包括完整的360 $^\ Circ $相位分辨率以及提高灵敏度。通过解调在原子上广播的四个相态信号，可以证实这种方法的一般适用性。我们的方法开辟了新的传感方案，并为全光rydberg原子传感实现提供了清晰的途径。
Although Rydberg atom-based electric field sensing provides key advantages over traditional antenna-based detection, it remains limited by the need for a local oscillator (LO) for low-field and phase resolved detection. In this work, we demonstrate that closed-loop quantum interferometric schemes can be used to generate a system-internal reference that can directly replace an external LO for Rydberg field sensing. We reveal that this quantum-interferometrically defined internal reference phase and frequency can be used analogously to a traditional LO for atom-based down-mixing to an intermediate frequency for lock-in phase detection. We demonstrate that this LO-equivalent functionality provides analogous benefits to an LO, including full 360$^\circ$ phase resolution as well as improved sensitivity. The general applicability of this approach is confirmed by demodulating a four phase-state signal broadcast on the atoms. Our approach opens up new sensing schemes and provides a clear path towards all-optical Rydberg atom sensing implementations.
