期刊
PHYSICAL REVIEW X
卷 8, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevX.8.041044
关键词
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资金
- COPOMOL project - Hong Kong RGC [A-CUHK403/13]
- COPOMOL project - French Agence Nationale de la Recherche [ANR-13-IS04-0004-01]
- RGC General Research Fund [CUHK14301815]
- National Basic Research Program of China [2014CB921403]
The dipolar collision between ultracold polar molecules is an important topic both by its own right from the fundamental point of view and for the successful exploration of many-body physics with strong and long-range dipolar interactions. Here, we report the investigation of collisions between ultracold ground-state sodium-rubidium molecules in electric fields with induced electric dipole moments as large as 0.7 D. We observe a stepwise enhancement of losses due to the coupling between different partial waves induced by the increasingly stronger anisotropic dipolar interactions. Varying the temperature of our sample, we find good agreement with theoretical loss rates assuming complex formation as the main loss process. Our results shed new light on the understanding of complex molecular collisions in the presence of strong dipolar interactions and also demonstrate the versatility of modifying molecular interactions with electric fields.
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