期刊
PHYSICAL REVIEW LETTERS
卷 94, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.94.083001
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We here report on the realization of an electrodynamic trap, capable of trapping neutral atoms and molecules in both low-field and high-field seeking states. Confinement in three dimensions is achieved by switching between two electric field configurations that have a saddle point at the center of the trap, i.e., by alternating a focusing and a defocusing force in each direction. The ac trapping of (ND3)-N-15 molecules is experimentally demonstrated, and the stability of the trap is studied as a function of the switching frequency. A 1 mK sample of (ND3)-N-15 molecules in the high-field seeking component of the \J,K>=\1,1> level, the ground state of para-ammonia, is trapped in a volume of about 1 mm(3).
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