Nonadiabatic transport of cold atoms in a magnetic quadrupole potential

Nonadiabatic transport of cold atoms in a magnetic quadrupole potential
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磁四极势中冷原子的非绝热输运

DOI:
10.1063/1.3377919
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发表时间:
2010-03
影响因子:
4
通讯作者:
Wang, Yuzhu
Wang, Yuzhu
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Chen, Dongyuan;Zhang, Haichao;Xu, Xinping;Li, Tang;Wang, Yuzhu

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实验研究了冷原子在磁四极阱中的非绝热输运过程。通过改变两对反亥姆霍兹线圈的电流来控制陷阱的电势速度。我们有效地传输冷原子与两个速度区。例如,当势速度为18(28 cm/s)时,冷原子云的最终速度为0.6±2.7(58.6±1.5 cm/s)。 适当速度的陷阱运动可以将高能原子从陷阱中驱逐出去,导致高剩余速度原子的温度下降。
We experimentally demonstrated the transport of cold atoms in a magnetic quadrupole trap in the nonadiabatic regime on the order of the trap period. The trap potential velocity was controlled by varying the currents of the two pairs of anti-Helmholtz coils. We efficiently transported cold atoms with two velocity regimes. For example, with a potential velocity of 18 (28 cm/s), the final velocity of a cold atom cloud is 0.6±2.7 (58.6±1.5 cm/s). The trap motion with proper velocity could expel energetic atoms from the trap, resulting in a decline in temperature of high residual velocity atoms.
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