Planar Integrated Magneto Optical Trap
Liang Chen, Chang-Jiang Huang, Xin-Biao Xu, Zheng-Tian Lu, Zhu-Bo, Wang, Guang-Jie Chen, Ji-Zhe Zhang, Hong X. Tang, Chun-Hua Dong, Wen Liu,, Guo-Yong Xiang, Guang-Can Guo, and Chang-Ling Zou

TL;DR
This paper introduces a novel planar-integrated magneto-optical trap (MOT) that simplifies the traditional setup by using a flat optical grating and coil chip, reducing size and complexity for advanced quantum applications.
Contribution
The work presents the first implementation of a planar-integrated MOT combining optical grating and magnetic coil chips, enabling compact and efficient cold atom trapping.
Findings
Successfully trapped 10^4 ^87Rb atoms above the chip surface.
Reduced the volume, weight, and complexity of the MOT system.
Demonstrated potential for portable quantum devices.
Abstract
Abstract The magneto-optical trap (MOT) is an essential tool for collecting and preparing cold atoms with a wide range of applications. We demonstrate a planar-integrated MOT by combining an optical grating chip with a magnetic coil chip. The flat grating chip simplifies the conventional six-beam configuration down to a single laser beam; the flat coil chip replaces the conventional anti-Helmholtz coils of a cylindrical geometry. We trap 10^{4} cold ^{87}\text{Rb} atoms in the planar-integrated MOT, at a point 3-9 mm above the chip surface. This novel configuration effectively reduces the volume, weight, and complexity of the MOT, bringing benefits to applications including gravimeter, clock and quantum memory devices.
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Taxonomy
TopicsCold Atom Physics and Bose-Einstein Condensates · Advanced Frequency and Time Standards · Quantum optics and atomic interactions
