Ramsey interferometry with cold atoms in coherent population trapping

The utilization of Ramsey interferometry via coherent population trapping (CPT), which enables the optical interrogation of microwave transitions without the reliance on microwave cavities, plays a crucial role in the advancement of compact and low-power quantum sensors.Particularly, high-resolution CPT-Ramsey spectroscopy of alkali-metal atoms has found led cocktail smoker extensive application in constructing miniaturized quantum sensors like atomic magnetometers and atomic clocks.Due to their well-defined environment and extended coherence time, cold atoms offer enhanced sensitivity and precision in CPT-Ramsey interferometry.This review comprehensively kiara sky allure examines CPT-Ramsey interferometry with cold atoms, encompassing both conventional and multi-pulse techniques, and explores their potential applications in practical quantum sensors.