期刊
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
卷 54, 期 15, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1361-6455/ac0393
关键词
spinor condensate; ultracold atoms; optical dipole trap
资金
- National Key R&D program of China [2017YFA0304203]
- National Natural Science Foundation of China [61722507, 61675121, 61705123, 62020106014]
- PCSIRT [IRT17R70]
- 111 Project [D18001]
- Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi
- Applied Basic Research Project of Shanxi Province [201801D221004, 201901D211191, 201901D211188]
- Shanxi 1331 KSC
- Russian Foundation for Basic Research
- NSF of China [62011530047, 20-53-53025]
The experiment presents a method for quickly producing Bose-Einstein condensates (BECs) of Na-23 atoms, creating a pure F = 1 BEC of approximately 1.1 x 10^5 sodium atoms with a fast forced evaporation process. The system reliably generates the condensate at a rate exceeding 10^5 atoms every approximately 8 seconds. Additionally, the lifetimes of the mixed F = 1 condensate and the spin components (m ( F ) = 0, m ( F ) = +1) were compared.
We present an experiment for quickly producing Bose-Einstein condensates (BECs) of Na-23 atoms in a simple crossed dipole trap. The atoms were collected in a magneto-optical trap from a zero-crossing Zeeman slower. The atoms are then transferred to a tightly focused crossed optical dipole trap, and a pure F = 1 BEC of similar to 1.1 x 10(5) sodium atoms was created by a fast forced evaporation. Our system reliably generates the condensate at a rate exceeding 10(5) atoms every similar to 8 s. We also compare the lifetimes of the mixed F = 1 condensate and the spin components (m ( F ) = 0, m ( F ) = +1).
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