Publications by authors named "Qiu-Zhi Qu"
Article Synopsis
- Laser cooling has greatly impacted atomic and quantum physics research, particularly in microgravity environments.
- Our experiment in the TianGong-2 space lab, which lasted 34 months, showed that laser cooling quality remained stable and allowed us to systematically study its properties in orbit.
- We found that cold atom techniques, like magneto-optical trapping, work more efficiently in microgravity, leading to lower temperatures and reduced loss rates in atom cooling, setting the stage for future long-term space missions.
Article Synopsis
- A transportable rubidium atomic fountain clock is essential for precise time-frequency measurements due to its stability and high reliability compared to traditional clocks.
- Developed by the Shanghai Institute of Optical and Fine Mechanics, this clock successfully maintained its performance even after being transported over 1000 km without the need for hardware adjustments.
- During nearly three months of operation alongside a cesium fountain clock, the rubidium clock demonstrated impressive frequency repeatability, averaging less than 3.8 × 10, indicating its effectiveness as a reliable timekeeping device.
Atomic clocks based on laser-cooled atoms are widely used as primary frequency standards. Deploying such cold atom clocks (CACs) in space is foreseen to have many applications. Here we present tests of a CAC operating in space.
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