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Pre-emptive parametric kill switch for evaporative atomic sources in vacuum |
| Shuang Li(李爽)1,2,†, Zhiyuan Lin(林志远)1,2,†, Sen Li(李森)1,2, Mohan Zhang(张默含)1,2, Fengquan Zhang(张凤泉)1,2, Jin Hu(胡瑾)1,2, Xiaotong Liu(刘宵彤)1,2, Lin Meng(孟林)1,2, Tim Byrnes1,2,3,4,5,‡, and Valentin Ivannikov(瓦伦丁)2,§ |
1 State Key Laboratory of Precision Spectroscopy, School of Physical and Material Sciences, East China Normal University (ECNU), Shanghai 200062, China;
2 New York University (NYU) Shanghai, Shanghai 200126, China;
3 NYU-ECNU Institute of Physics at NYU Shanghai, Shanghai 200062, China;
4 Center for Quantum and Topological Systems, New York University Abu Dhabi (NYUAD) Research Institute, NYUAD, UAE;
5 Department of Physics, New York University, New York, NY 10003, USA |
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Abstract A robust pre-emptive kill switch for cold atom experiments is introduced to significantly reduce costly system reassembly or replacement. The design incorporates upper (alarm) and lower (evaporation) event detection mechanisms based on predefined thresholds. Meanwhile, a duty cycle timing methodology is employed to prevent unintentional activation of the dispenser when pulse signals occur. The circuit employs generic components, a modular design, and formalized logic, ensuring cost-effectiveness and making the design suitable for school laboratories and other research environments. This design is highly versatile and can be applied to other sensitive devices beyond dispensers, such as heating filaments, titanium sublimation pumps, tungsten lamps, and comparable systems.
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Received: 09 December 2025
Revised: 18 March 2026
Accepted manuscript online: 26 March 2026
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PACS:
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37.10.De
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(Atom cooling methods)
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07.30.Kf
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(Vacuum chambers, auxiliary apparatus, and materials)
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07.77.Gx
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(Atomic and molecular beam sources and detectors)
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84.30.-r
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(Electronic circuits)
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| Fund: Project supported by the SMEC Scientific Research Innovation Project (Grant No. 2023ZKZD55), the National Natural Science Foundation of China (Grant No. 92576102), the Science and Technology Commission of Shanghai Municipality (Grant No. 22ZR1444600), the NYU Shanghai Boost Fund, the China Foreign Experts Program (Grant No. G2021013002L), the NYU-ECNU Institute of Physics at NYU Shanghai, the NYU Shanghai Major-Grants Seed Fund, and Tamkeen under the NYU Abu Dhabi Research Institute (Grant No. CG008). |
Corresponding Authors:
Tim Byrnes, Valentin Ivannikov
E-mail: tim.byrnes@nyu.edu;valentin@nyu.edu
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Cite this article:
Shuang Li(李爽), Zhiyuan Lin(林志远), Sen Li(李森), Mohan Zhang(张默含), Fengquan Zhang(张凤泉), Jin Hu(胡瑾), Xiaotong Liu(刘宵彤), Lin Meng(孟林), Tim Byrnes, and Valentin Ivannikov(瓦伦丁) Pre-emptive parametric kill switch for evaporative atomic sources in vacuum 2026 Chin. Phys. B 35 073701
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