Abstract： Based on the dressed-atom approach, we discuss a two-dimensional (2D) radio-frequency trap for neutral atoms, in which the trap potential derives from the magnetic-dipole transitions among the hyperfine Zeeman sublevels. By adjusting the detuning of the radiation from resonance, the trapping states will be changed predominantly from the bare states of mF gF > 0 to other states of mF gF < 0, where mF and gF are the quantum numbers of Zeeman sublevels and the Landé factor, respectively. This character contrasts finely with that of a static magnetic trap that can only trap or guide the states of mF gF > 0. In comparison to the optical field, the radio-frequency trap eliminates the spontaneous emission heating of the atoms. Unlike other oscillating traps reported in the literature, the configuration of the radio frequency trap is suitable for realization of a miniature magnetic guide.
ZHANG Hai-Chao;ZHANG Peng-Fei;XU Xin-Ping; HAN Jiu-Rong;WANG Yu-Zhu. Trapping of Neutral Atoms with a Radio-Frequency Field[J]. 中国物理快报, 2005, 22(1): 83-86.
ZHANG Hai-Chao, ZHANG Peng-Fei, XU Xin-Ping, HAN Jiu-Rong, WANG Yu-Zhu. Trapping of Neutral Atoms with a Radio-Frequency Field. Chin. Phys. Lett., 2005, 22(1): 83-86.
2005, Vol. 22 
