期刊
PHYSICAL REVIEW LETTERS
卷 116, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.063004
关键词
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资金
- ARO
- ARO (MURI)
- NSF GRFP
- Engineering and Physical Sciences Research Council [EP/M027716/1, EP/I012044/1] Funding Source: researchfish
- EPSRC [EP/M027716/1, EP/I012044/1] Funding Source: UKRI
- Direct For Mathematical & Physical Scien
- Division Of Physics [1125846] Funding Source: National Science Foundation
We demonstrate a scheme for magneto-optically trapping strontium monofluoride (SrF) molecules at temperatures one order of magnitude lower and phase space densities 3 orders of magnitude higher than obtained previously with laser-cooled molecules. In our trap, optical dark states are destabilized by rapidly and synchronously reversing the trapping laser polarizations and the applied magnetic field gradient. The number of molecules and trap lifetime are also significantly improved from previous work by loading the trap with high laser power and then reducing the power for long-term trapping. With this procedure, temperatures as low as 400 mu K are achieved.
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